Why Did My Z, Keep Revving? Video.

TheWeatherman · 01-29-2010, 10:12 AM

M4 Mustang is right. SRM doesn't act like that. It sounds like you drive like me. When the revs get too low, and I'm coming to a stop, I drop it to neutral in the middle of the shift gate. Like Mustang said, if I start hinting that I'm heading toward a gear, it will aggresively blip at me. This was just a constant rev that wouldn't go down. Thanks for backing that up M4.

I should reset the car, or maybe it has a code stored and I should take it in. Hmmmm.

semtex · 01-29-2010, 10:14 AM

Quote:

Originally Posted by TheWeatherman

I really believe it had nothing to do with the SRM. When the car was stopped, idling, it still idled at around 3,500 RPM. SRM only is effective when the car is in motion. It uses speed and gear position to find it's rev point. If I'm stopped and outside of the car, it shouldn't be revving at 3,500 RPM.

As far as the temperature, when it's this cold, the oil temperatures reflect that. It was in it's normal operating temperature for this ambient temperature. If you drive your car when it's 0-10 degrees down the highway, you'll notice your oil temp will be between 170°-190°F. That's where mine was. Car was out and about for at least 25 minutes when the video was taken. I don't have an oil cooler.

I don't always drop to neutral. When I was coming off of the highway to a stoplight, the car was actually speeding up. I was hitting the brakes in 6th trying to come down from 60MPH when I noticed something was wrong. Hence, nothing to do with SRM. Try it in your car. Go cruising around the city, pop it in neutral, put the stick right in the middle of the gate, don't touch the shifter, and the revs should drop down pretty far... Not 3,500 RPM.

Something was stuck on my machine or not working properly. It scared me at first coming off the highway. It has never done that before. 12,000 miles... I know when something's broken. SRM... No.

Why don't you just try turning it off to be sure? I mean, would it really hurt anything just to give it a shot in the spirit of process of elimination? Also, if your car was speeding up when you were coming off the highway, that would actually cause SRM to hold the revs higher, as the faster you're going when you drop to a lower gear, the higher the revs need to be for a smooth match.

TheWeatherman · 01-29-2010, 10:16 AM

Quote:

Originally Posted by semtex

Why don't you just try turning it off to be sure? I mean, would it really hurt anything just to give it a shot in the spirit of process of elimination? Also, if your car was speeding up when you were coming off the highway, that would actually cause SRM to hold the revs higher, as the faster you're doing when you drop to a lower gear, the higher the revs need to be for a smooth match.

But I didn't downshift (In 6th) and was completely off the throttle. That system knows that and won't intervene in that situation. I'm positive it wasn't SRM.

semtex · 01-29-2010, 10:17 AM

Btw, just to be clear, based on this happening when you're not even in motion and outside the car, I would agree that it's not SRM. I just think it can't hurt to see if turning SRM yields any change in behavior is all. Every little clue helps, after all.

semtex · 01-29-2010, 10:22 AM

Quote:

Originally Posted by TheWeatherman

But I didn't downshift (In 6th) and was completely off the throttle. That system knows that and won't intervene in that situation. I'm positive it wasn't SRM.

Yep, I see what you're saying. But I guess what I'm trying to say is this. It definitely wasn't SRM in the context of what SRM is supposed to do. But what if it's a malfunctioning SRM? What if you have a malfunctioning SRM that thinks you downshifted even when you didn't, for instance? You could disconnect the battery, and that might (indeed hopefully) fix it. But unless you try turning the SRM off first to see if it changes anything, then for all we know, the battery disconnect fixed the problem by rebooting a faulty SRM. Of course, at that point if it fixes your problem it doesn't really matter right? I guess I'm just being anal about trying to hone in on the root cause.

gemini09m3 · 01-29-2010, 10:27 AM

Instead of worrying about how this situation scares you just take it to the dealer its under warranty!!!!

TheWeatherman · 01-29-2010, 10:31 AM

Quote:

Originally Posted by gemini09m3

Instead of worrying about how this situation scares you just take it to the dealer its under warranty!!!!

I'm not scared. I just thought I'd share it with you guys! Something to watch for.

WICKED_GRIN · 01-29-2010, 10:35 AM

Quote:

Originally Posted by gemini09m3

Instead of worrying about how this situation scares you just take it to the dealer its under warranty!!!!

+1

bullitt5897 · 01-29-2010, 10:55 AM

TW, I have played around with SRM quite a bit and yes it will hold 3500rpms in neutral if it is near one of the gates. I as a fun lil habit when coasting in neutral will push the shifter laterally to the lower gears and it will act like it rev'd but I never came even close to a gate... in my case it would hold it for several seconds and then finally relent. I believe with turning the SRM system off while running the car for a few mile then turning it back on will help trouble shoot the issue. For sure I know it is an SRM issue like I stated before. I didnt see that you were at zero mph earlier and after watching the video again I see that. turn off the SRM drive it and see if that fixes the issue, then turn it back on and see if it continues. if that doesnt work unplug the battery for several minutes to let everything die down and then plug the battery back up and try again.

This is problem shooting 101... Now you say you arent worried but man seriously you should hear your voice in that video. Im not meaning to sound like a prick or an A$$hole but you sound so worried and like a little b!tch. I dont mean to be rude but take a step out and realize its a machine it may have problems and its not doing it to you on purpose. Its not bad luck either and if the problem persists take it to the dealer this is not that big of a deal! and this coming from 1 of 2 on these forums that has blown a stock motor already! I blew my motor at 10,100 miles and 1/2 mile from the dealership cause the motor was making funny noises. My car has been in more shops for over 6 months than it has been on the road. Just relax and take another video without the "why is this happening to me" attitude... Thanks and we all want to see you enjoying your Z so try these trouble shooting ideas before you shoot them down.

Mike

HKYStormFront · 01-29-2010, 11:11 AM

chalk me up in the group that says take it to the dealer and let them figure it out. probably just a hard reset on the ECU to relearn the parameters. just post what they find and then we'll all know...

TheWeatherman · 01-29-2010, 11:15 AM

Quote:

Originally Posted by bullitt5897

TW, I have played around with SRM quite a bit and yes it will hold 3500rpms in neutral if it is near one of the gates. I as a fun lil habit when coasting in neutral will push the shifter laterally to the lower gears and it will act like it rev'd but I never came even close to a gate... in my case it would hold it for several seconds and then finally relent. I believe with turning the SRM system off while running the car for a few mile then turning it back on will help trouble shoot the issue. For sure I know it is an SRM issue like I stated before. I didnt see that you were at zero mph earlier and after watching the video again I see that. turn off the SRM drive it and see if that fixes the issue, then turn it back on and see if it continues. if that doesnt work unplug the battery for several minutes to let everything die down and then plug the battery back up and try again.

This is problem shooting 101... Now you say you arent worried but man seriously you should hear your voice in that video. Im not meaning to sound like a prick or an A$$hole but you sound so worried and like a little b!tch. I dont mean to be rude but take a step out and realize its a machine it may have problems and its not doing it to you on purpose. Its not bad luck either and if the problem persists take it to the dealer this is not that big of a deal! and this coming from 1 of 2 on these forums that has blown a stock motor already! I blew my motor at 10,100 miles and 1/2 mile from the dealership cause the motor was making funny noises. My car has been in more shops for over 6 months than it has been on the road. Just relax and take another video without the "why is this happening to me" attitude... Thanks and we all want to see you enjoying your Z so try these trouble shooting ideas before you shoot them down.

Mike

Bullit, it's just that I've spent 2 months bringing my FX back and forth from the dealer for the same thing. The FX has now been gone for well over a week. That's why I'm ticked. I should be. I spend more of my free time running these cars to the dealer than I have time for. The Infiniti dealer is over 45 minutes for my house, 1 way, and has been in 4 times for the same nav screen thing because Infiniti told the dealer NOT to put in a new screen. I'm sorry. 5 because the first one was a diagnosis. Not to mention the problem with my XM radio (9 hours of total time to get that straightened out) since they replaced the AV unit (used from California. Nice. His name was Mark), dead steering column, loose center console, a screw caught rolling around in the hatch door that they can't find, Bridgestone tires that had to all be replaced because they were loosing huge chunks of tread, a transmission that had to be reprogrammed for huge flares and thuds, and to cap it all off... The tech accidently banged my door into the metal rack. Now the door is being repainted. Get it? The car has been in 14 times in the past year for things OTHER than oil changes. (And it's not me being a whiney owner. Chunks of my tires were coming off and I could hear them smacking the wheel wells.) Of course I'm bothered. The FX is still in the shop, now I have to bring this thing in. That's gas money and time I'd like back. 14 trips= 1120 miles, 26 hours not including traffic. That's just the FX.

The Z has only been in once for the oil changes, grinding second gear, and that high pitched noise. Luckily that dealer is only 20 minutes from me.

Of course I'm bothered. While the Infin was in, I thought I'd enjoy the Z. I did, it just broke and wanted to show you. Next time I'll just not say anything and you can figure out what wrong and how I feel about it. Calm down Bullit. I'm just sharing the information.

Oh, the FX is a 2009 35 with 15,000 miles on it.

I respect all of you who haven't bashed me for just posting a video. I just wanted to share and ask what you thought before I bring it in to the dealer. Thought it would be a fun discussion.

bullitt5897 · 01-29-2010, 11:55 AM

TW, Im not bashing you bro. not in the least bit. Its harder for us to watch videos when people are complaining and it often gets a negative connotation associated with it when you do that. Like I said I didnt want to sound like an a$$ for saying that stuff its just that type of tone and stuff bugs the sh1t out of me and especially someone asking for help. You know its like a hey dude calm down kind of thing.

I understand the dealership deal. I believe you just have a sh1tty service dept. at the dealer to be honest. It should not have taken that long to fix those kinds of problems and to still be dealing with them. If it were me I would sit down with the service manager and have a lil talk. For instance the dealer put my z on a lift wrong and put a small bend in my side skirts. I saw it and talked to the manager and now I am getting free nismo ones. They should atleast be compensating you at the very least. I hate to hear what is going on with your FX but I will say this... that is a completely different platform and should be kept separate from the Z. I hope you have a Nissan dealer closer to you and be upfront with them with I want a no nonsense fix for this like yesterday. It always works for me but then again I call the shops and talk to them every other day to get status updates. It may seem like alot of work but I know my stuff is getting done correctly. I also talk to the techs that work on my car personally and if I dont like them I ask for another tech. Remember you are the customer get what you want!

Again, nobody is bashing you for posting the video. In fact we encourage you to do it when you have problems, as it helps us to help you. Please keep us updated on the trouble shooting and hopefully we can help you solve the issue without you having to drive to the dealer.

your a good guy keep posting!

TheWeatherman · 01-29-2010, 12:03 PM

It's fine Bullitt. It was just frustration that's been building up. The reason I bought two Nissan products is the fact that I've had nothing but luck with the brand. It's like the complete opposite side of the spectrum from my previous models! Suprising! I'll keep ya updated though.

I'm treating it like a "let's take a stab at what's wrong." The correct guess will win... A post from me talking about what was wrong!

I just find it fun. I was a little annoyed in the video. I was just "thinking out loud" in the video. I work in TV, so I'm used to just talking to noone. Wait, is that a problem?

bullitt5897 · 01-29-2010, 12:14 PM

Ladies and gentleman the weatherman is confirmed as crazy!

lol

ChrisSlicks · 01-29-2010, 12:22 PM

Quote:

Originally Posted by Modshack

First, the Syncro rev match doesn't anticipate anything. It is purely analog in that Microswitches in the gate are triggered depending on what gear you intend to enter. You can actually feel the point of switch engagement when you move the stick and the revs go up...The only way this could happen as in the video would be if the Microswitches were sticking because of the cold......However, a shift to neutral should not have triggered them at all unless it was a sloppy shift and bumped against the switch engagement point.

There are sensors in the 3 neutral positions as well which it uses to start revving based on which gear pair you are heading for. But in this case it didn't look like SRM behavior at all because the RPM's kept creeping up slowly, normally SRM hits the target RPM exactly and doesn't fluctuate.

01-29-2010, 10:17 AM	#34 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 54 Posts: 5,995 Drives: People to drink Rep Power: 33	Btw, just to be clear, based on this happening when you're not even in motion and outside the car, I would agree that it's not SRM. I just think it can't hurt to see if turning SRM yields any change in behavior is all. Every little clue helps, after all. __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

01-29-2010, 10:55 AM	#39 (permalink)
bullitt5897 Premium Member Join Date: Jan 2009 Location: North GA Posts: 6,831 Drives: Twin Turbo Z34 Rep Power: 3682	TW, I have played around with SRM quite a bit and yes it will hold 3500rpms in neutral if it is near one of the gates. I as a fun lil habit when coasting in neutral will push the shifter laterally to the lower gears and it will act like it rev'd but I never came even close to a gate... in my case it would hold it for several seconds and then finally relent. I believe with turning the SRM system off while running the car for a few mile then turning it back on will help trouble shoot the issue. For sure I know it is an SRM issue like I stated before. I didnt see that you were at zero mph earlier and after watching the video again I see that. turn off the SRM drive it and see if that fixes the issue, then turn it back on and see if it continues. if that doesnt work unplug the battery for several minutes to let everything die down and then plug the battery back up and try again. This is problem shooting 101... Now you say you arent worried but man seriously you should hear your voice in that video. Im not meaning to sound like a prick or an A$$hole but you sound so worried and like a little b!tch. I dont mean to be rude but take a step out and realize its a machine it may have problems and its not doing it to you on purpose. Its not bad luck either and if the problem persists take it to the dealer this is not that big of a deal! and this coming from 1 of 2 on these forums that has blown a stock motor already! I blew my motor at 10,100 miles and 1/2 mile from the dealership cause the motor was making funny noises. My car has been in more shops for over 6 months than it has been on the road. Just relax and take another video without the "why is this happening to me" attitude... Thanks and we all want to see you enjoying your Z so try these trouble shooting ideas before you shoot them down. Mike __________________ *Shop Cars: 2013 318whp Nismo VspecII 370z SOLD, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054*

01-29-2010, 11:11 AM	#40 (permalink)
HKYStormFront A True Z Fanatic Join Date: Apr 2009 Location: Greer, SC Posts: 14,954 Drives: 06 Frontier SE 6spd Rep Power: 52	chalk me up in the group that says take it to the dealer and let them figure it out. probably just a hard reset on the ECU to relearn the parameters. just post what they find and then we'll all know... __________________ Patrick // 06 Frontier 6spd Nismosis // Mods: Uprev Tuned @ Z1 Motorsports: 257whp & 292 ft lbs 09 Pontiac G8 GXP // M6 // Sunroof // Tint... For now

01-29-2010, 11:55 AM	#42 (permalink)
bullitt5897 Premium Member Join Date: Jan 2009 Location: North GA Posts: 6,831 Drives: Twin Turbo Z34 Rep Power: 3682	TW, Im not bashing you bro. not in the least bit. Its harder for us to watch videos when people are complaining and it often gets a negative connotation associated with it when you do that. Like I said I didnt want to sound like an a$$ for saying that stuff its just that type of tone and stuff bugs the sh1t out of me and especially someone asking for help. You know its like a hey dude calm down kind of thing. I understand the dealership deal. I believe you just have a sh1tty service dept. at the dealer to be honest. It should not have taken that long to fix those kinds of problems and to still be dealing with them. If it were me I would sit down with the service manager and have a lil talk. For instance the dealer put my z on a lift wrong and put a small bend in my side skirts. I saw it and talked to the manager and now I am getting free nismo ones. They should atleast be compensating you at the very least. I hate to hear what is going on with your FX but I will say this... that is a completely different platform and should be kept separate from the Z. I hope you have a Nissan dealer closer to you and be upfront with them with I want a no nonsense fix for this like yesterday. It always works for me but then again I call the shops and talk to them every other day to get status updates. It may seem like alot of work but I know my stuff is getting done correctly. I also talk to the techs that work on my car personally and if I dont like them I ask for another tech. Remember you are the customer get what you want! Again, nobody is bashing you for posting the video. In fact we encourage you to do it when you have problems, as it helps us to help you. Please keep us updated on the trouble shooting and hopefully we can help you solve the issue without you having to drive to the dealer. your a good guy keep posting! __________________ *Shop Cars: 2013 318whp Nismo VspecII 370z SOLD, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054*

01-29-2010, 12:14 PM	#44 (permalink)
bullitt5897 Premium Member Join Date: Jan 2009 Location: North GA Posts: 6,831 Drives: Twin Turbo Z34 Rep Power: 3682	Ladies and gentleman the weatherman is confirmed as crazy! lol __________________ *Shop Cars: 2013 318whp Nismo VspecII 370z SOLD, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054*

01-29-2010, 10:12 AM	#31 (permalink)
TheWeatherman Enthusiast Member Join Date: Mar 2009 Location: Milwaukee, WI Posts: 265 Drives: 2009 370Z 6MTw/Sport Rep Power: 16	M4 Mustang is right. SRM doesn't act like that. It sounds like you drive like me. When the revs get too low, and I'm coming to a stop, I drop it to neutral in the middle of the shift gate. Like Mustang said, if I start hinting that I'm heading toward a gear, it will aggresively blip at me. This was just a constant rev that wouldn't go down. Thanks for backing that up M4. I should reset the car, or maybe it has a code stored and I should take it in. Hmmmm.

01-29-2010, 10:27 AM	#36 (permalink)
gemini09m3 Base Member Join Date: Aug 2009 Location: NewJersey Posts: 10 Drives: 08 BMW E90 M3 Rep Power: 16	Instead of worrying about how this situation scares you just take it to the dealer its under warranty!!!!

01-29-2010, 12:03 PM	#43 (permalink)
TheWeatherman Enthusiast Member Join Date: Mar 2009 Location: Milwaukee, WI Posts: 265 Drives: 2009 370Z 6MTw/Sport Rep Power: 16	It's fine Bullitt. It was just frustration that's been building up. The reason I bought two Nissan products is the fact that I've had nothing but luck with the brand. It's like the complete opposite side of the spectrum from my previous models! Suprising! I'll keep ya updated though. I'm treating it like a "let's take a stab at what's wrong." The correct guess will win... A post from me talking about what was wrong! I just find it fun. I was a little annoyed in the video. I was just "thinking out loud" in the video. I work in TV, so I'm used to just talking to noone. Wait, is that a problem?

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