Cant rev pass 3500 rpm HELP

tru_Asiatik · 10-24-2012, 07:24 PM

Sup guys its been forever since ive logged in the site i somewhat stopped modding my z due to family
But now i have this issue and this is the second time it has happend
As im driving all of a sudden i cannot drive/rev pass 3500 rpm i tried shifting in other gears n same issue, also tried turning off the car n no luck
I tried doing a search and found AKs post but i dont think it was resolved
Anyone else have a similar problem n can put light to it?
I dont want to take ut to the dealer just yet(hate dealing with them)
Thanks

Trips · 10-24-2012, 07:39 PM

Hey Marco,

Sorry to hear about whats happening but sounds like it could it be in limp mode?

Hows the oil temp?

Have you tried to reset the ecu?

Chuck33079 · 10-24-2012, 07:41 PM

Is it throwing a code? Sounds like limp mode. If it's throwing a code drive up to Autozone and have them pull it so you can know what the problem is.

Chuck33079 · 10-24-2012, 07:43 PM

Another thought- if it's throwing a check engine light, don't reset the ecu and clear it out before you get it scanned to see what's going on.

tru_Asiatik · 10-24-2012, 07:46 PM

Well no check engine light so im not sure if it would show a code
I was driving a good 10 minutes and was not really pushing the car i did check all gauges oil was about 180, battery at 14.3 engine temp/coolant was a dot below half

Trips · 10-24-2012, 07:47 PM

From reading other threads if your not throwing any cels and oil temp is normal? simply reset the ignition or a ecu reset will clear it. Seems like its bug and just restarting the car will fix it

Chuck33079 · 10-24-2012, 07:49 PM

I'm not sure if the Z's ecu works the same way, but on other cars I've been able to see pending codes on an OBD scanner even if the check engine light isn't on. Might be worth a shot before you spend eternity troubleshooting. Or, clear the ecu and assume it's a random one-off glitch unless it comes back. If it's a real issue, it'll happen again.

tru_Asiatik · 10-24-2012, 07:51 PM

Will do thanks will keep u guys posted

tru_Asiatik · 10-24-2012, 08:17 PM

Just an update got back in the car after an hour
Been driving for 20 minutes so far it hasnt happend again...
Hhhmmm

MyKindaGuise · 10-24-2012, 08:23 PM

Had this happen to me...eventually led to an ecu failure. Good luck bro.

tru_Asiatik · 10-24-2012, 08:25 PM

Btw just in case u missed it this is the second time it had happend (first time was about a month ago) and now on both occasions it has fixed itself after turning the car off and letting it sit.... The way it was bogging did seem like it went to limp mode... But my main suspect right now is it has something to do with the traction control.... Tsk... I need a new car lol

tru_Asiatik · 10-24-2012, 08:25 PM

Quote:

Originally Posted by MyKindaGuise

Had this happen to me...eventually led to an ecu failure. Good luck bro.

Whhhhuuutt?!!! Really?

wind.zero · 10-24-2012, 08:37 PM

Quote:

Originally Posted by Chuck33079

I'm not sure if the Z's ecu works the same way, but on other cars I've been able to see pending codes on an OBD scanner even if the check engine light isn't on. Might be worth a shot before you spend eternity troubleshooting. Or, clear the ecu and assume it's a random one-off glitch unless it comes back. If it's a real issue, it'll happen again.

^^
This

Find out if you have a code that is not throwing the CEL. I had this and it was a small adjustment in my tune but your description is almost exactly what was happening to me. It was definitely limp mode. A restart of the car, or several restarts, usually fixed it.

My problem tracked backed to a MAP issue in the tune. Did you wash or detail the engine recently? The paste below was the troubleshooting path I followed:

It is probably worth a shot to the check the MAP sensors:
1) Harness or connectors
2) Mass air flow sensor
3) MAP sensor
4) Evap pressure sensor
5) Intake air leaks
6) Intake air temperature sensor

Good luck. Limp mode sucks.

tru_Asiatik · 10-24-2012, 08:44 PM

Quote:

Originally Posted by wind.zero

^^
This

Find out if you have a code that is not throwing the CEL. I had this and it was a small adjustment in my tune but your description is almost exactly what was happening to me. It was definitely limp mode. A restart of the car, or several restarts, usually fixed it.

My problem tracked backed to a MAP issue in the tune. Did you wash or detail the engine recently? The paste below was the troubleshooting path I followed:

It is probably worth a shot to the check the MAP sensors:
1) Harness or connectors
2) Mass air flow sensor
3) MAP sensor
4) Evap pressure sensor
5) Intake air leaks
6) Intake air temperature sensor

Good luck. Limp mode sucks.

MAF also crossed my mind as i havent cleaned it as of late...

MyKindaGuise · 10-24-2012, 08:54 PM

Quote:

Originally Posted by tru_Asiatik

Whhhhuuutt?!!! Really?

Yep really. Freaking sucked. The GTR tech who worked on my car said he saw it happen to a non tampered with Z as well. My issue was slightly different due to the fault of the technician who wire my o2 sensors up. Anyways PO136 I think was the pending code. And to whoever mentioned our ECU's pending codes yes that is correct. I would get a scanner hooked up asap to make sure it isnt throwing non CEL triggering codes.

10-24-2012, 07:24 PM	#1 (permalink)
tru_Asiatik Track Member Join Date: Feb 2009 Location: so cal Posts: 793 Drives: 2009 370Z 6MT Rep Power: 270	Cant rev pass 3500 rpm HELP Sup guys its been forever since ive logged in the site i somewhat stopped modding my z due to family But now i have this issue and this is the second time it has happend As im driving all of a sudden i cannot drive/rev pass 3500 rpm i tried shifting in other gears n same issue, also tried turning off the car n no luck I tried doing a search and found AKs post but i dont think it was resolved Anyone else have a similar problem n can put light to it? I dont want to take ut to the dealer just yet(hate dealing with them) Thanks __________________ Stillen G3 CAIStillen CBEBerk's HFCEibach ProkitHotchkis Swaysichiba 15/20mm spacers? Oil coolerStillen PulleyStillen Headers

10-24-2012, 07:39 PM	#2 (permalink)
Trips Administrator Join Date: May 2009 Location: Disneyland, Ca Posts: 8,732 Drives: 🔰 Rep Power: 10	Hey Marco, Sorry to hear about whats happening but sounds like it could it be in limp mode? Hows the oil temp? Have you tried to reset the ecu? __________________

10-24-2012, 07:46 PM	#5 (permalink)
tru_Asiatik Track Member Join Date: Feb 2009 Location: so cal Posts: 793 Drives: 2009 370Z 6MT Rep Power: 270	Well no check engine light so im not sure if it would show a code I was driving a good 10 minutes and was not really pushing the car i did check all gauges oil was about 180, battery at 14.3 engine temp/coolant was a dot below half __________________ Stillen G3 CAIStillen CBEBerk's HFCEibach ProkitHotchkis Swaysichiba 15/20mm spacers? Oil coolerStillen PulleyStillen Headers

10-24-2012, 07:47 PM	#6 (permalink)
Trips Administrator Join Date: May 2009 Location: Disneyland, Ca Posts: 8,732 Drives: 🔰 Rep Power: 10	From reading other threads if your not throwing any cels and oil temp is normal? simply reset the ignition or a ecu reset will clear it. Seems like its bug and just restarting the car will fix it __________________

10-24-2012, 07:51 PM	#8 (permalink)
tru_Asiatik Track Member Join Date: Feb 2009 Location: so cal Posts: 793 Drives: 2009 370Z 6MT Rep Power: 270	Will do thanks will keep u guys posted __________________ Stillen G3 CAIStillen CBEBerk's HFCEibach ProkitHotchkis Swaysichiba 15/20mm spacers? Oil coolerStillen PulleyStillen Headers

10-24-2012, 07:41 PM	#3 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	Is it throwing a code? Sounds like limp mode. If it's throwing a code drive up to Autozone and have them pull it so you can know what the problem is.

10-24-2012, 07:43 PM	#4 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	Another thought- if it's throwing a check engine light, don't reset the ecu and clear it out before you get it scanned to see what's going on.

10-24-2012, 07:49 PM	#7 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	I'm not sure if the Z's ecu works the same way, but on other cars I've been able to see pending codes on an OBD scanner even if the check engine light isn't on. Might be worth a shot before you spend eternity troubleshooting. Or, clear the ecu and assume it's a random one-off glitch unless it comes back. If it's a real issue, it'll happen again.

10-24-2012, 08:17 PM	#9 (permalink)
tru_Asiatik Track Member Join Date: Feb 2009 Location: so cal Posts: 793 Drives: 2009 370Z 6MT Rep Power: 270	Just an update got back in the car after an hour Been driving for 20 minutes so far it hasnt happend again... Hhhmmm __________________ Stillen G3 CAIStillen CBEBerk's HFCEibach ProkitHotchkis Swaysichiba 15/20mm spacers? Oil coolerStillen PulleyStillen Headers

10-24-2012, 08:23 PM	#10 (permalink)
MyKindaGuise A True Z Fanatic Join Date: Feb 2012 Location: Pennsylvania Posts: 2,029 Drives: 11' 370z Sprt M6 Rep Power: 19	Had this happen to me...eventually led to an ecu failure. Good luck bro. __________________ \|445whp398tq\| \|BW S259 Turbo\|3" Downpipe\Exhaust\|ID1000\|AeroMotive\|Tial\|EcuTek\|BC BR\|S0-4\|MaffFab\| MKGs-Single-Turbo

10-24-2012, 08:25 PM	#11 (permalink)
tru_Asiatik Track Member Join Date: Feb 2009 Location: so cal Posts: 793 Drives: 2009 370Z 6MT Rep Power: 270	Btw just in case u missed it this is the second time it had happend (first time was about a month ago) and now on both occasions it has fixed itself after turning the car off and letting it sit.... The way it was bogging did seem like it went to limp mode... But my main suspect right now is it has something to do with the traction control.... Tsk... I need a new car lol __________________ Stillen G3 CAIStillen CBEBerk's HFCEibach ProkitHotchkis Swaysichiba 15/20mm spacers? Oil coolerStillen PulleyStillen Headers

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