Getting New MAF Sensors

ddvette9 · 02-03-2012, 09:40 AM

Took her in today for intermittent weak turnover, light sputtering at idle at stop lights sometimes.

Thought it was Fuel Filter/ Pressure.

Apparently my MAF sensors were reading bad causing bad air/fuel causing the problems. Getting new MAF sensors put in so we will see what happens and if the problem is fixed.

Figured the weak turnover/ sputtering had to be either ECU, MAF or Fuel Filter

6MT · 02-03-2012, 09:53 AM

There's no servicable fuel filter on a 370.

ddvette9 · 02-03-2012, 10:01 AM

Yea i found out the fuel filter is in the tank so hopefully the new MAF sensors fix my problem.

TreeSemdyZee · 02-03-2012, 11:00 AM

MAF sensors are the MOST over-replaced component on cars.
They are wires that get dirty. Spray them with carb cleaner and I can just about guarantee that the car will run fine after that.

ddvette9 · 02-03-2012, 09:24 PM

2 MAF replaced under warranty. The 4th start up after getting them installed was quiet and weak. Called my friend who has a nismo and basically asked him "does your car ever start up weak and seem like it doesnt want to turnover"...He said yes he knows exactly what I am talking about, his car after being warmed up seems hesistant to fire up.

I asked for fuel filter check but the tech said it is in the gas tank.

I have top speed y pipe and exhaust and drop ins along with a brand new battery and brand new MAF sensors.

Anyone else think our cars fire up weak and turn over kinda soft compared to other cars and also how strong our cars turn over when cold starts vs during the day after driving?

Hate to have to go back to the dealership and complain but I am 500 miles to warranty and nervous, can i expect anything to be looking bleak or am I over analyzing something that is just inherent in all of our cars

DIGItonium · 02-04-2012, 12:44 AM

Videos? Our cars take longer to start than others.

ddvette9 · 02-04-2012, 08:01 AM

What you guys think of this.

As far as the maf this what the tech sheet said
"checked data monitor alphas very low cleared self learn and performed iavl, af's returned to very low very quickly, confirmed maf failure, replaced maf's.

After I left the car still turned over quiet an SLOW. Jordo said our cars take longer than othe cars to start up. He knows his stuff but wanted to get your take on the tech notes

02-03-2012, 09:40 AM	#1 (permalink)
ddvette9 Track Member Join Date: May 2009 Location: Florida Posts: 823 Drives: 2013 Scion FRS Rep Power: 17	Getting New MAF Sensors Took her in today for intermittent weak turnover, light sputtering at idle at stop lights sometimes. Thought it was Fuel Filter/ Pressure. Apparently my MAF sensors were reading bad causing bad air/fuel causing the problems. Getting new MAF sensors put in so we will see what happens and if the problem is fixed. Figured the weak turnover/ sputtering had to be either ECU, MAF or Fuel Filter

02-03-2012, 09:53 AM	#2 (permalink)
6MT A True Z Fanatic Join Date: May 2009 Location: ITU Zone 2 Posts: 22,459 Drives: Reliant Robin Rep Power: 1790	There's no servicable fuel filter on a 370. __________________ Andrew 2009 370Z Sport/Touring 6MT sold 2013 Honda Civic Si coupe D/D

02-04-2012, 12:44 AM	#6 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	Videos? Our cars take longer to start than others. __________________

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02-03-2012, 10:01 AM	#3 (permalink)
ddvette9 Track Member Join Date: May 2009 Location: Florida Posts: 823 Drives: 2013 Scion FRS Rep Power: 17	Yea i found out the fuel filter is in the tank so hopefully the new MAF sensors fix my problem.

02-03-2012, 11:00 AM	#4 (permalink)
TreeSemdyZee Premium Member Join Date: Dec 2009 Location: Kentuck-IANA Age: 60 Posts: 4,885 Drives: '09 370 & ‘14 Juke Rep Power: 27408	MAF sensors are the MOST over-replaced component on cars. They are wires that get dirty. Spray them with carb cleaner and I can just about guarantee that the car will run fine after that.

02-03-2012, 09:24 PM	#5 (permalink)
ddvette9 Track Member Join Date: May 2009 Location: Florida Posts: 823 Drives: 2013 Scion FRS Rep Power: 17	2 MAF replaced under warranty. The 4th start up after getting them installed was quiet and weak. Called my friend who has a nismo and basically asked him "does your car ever start up weak and seem like it doesnt want to turnover"...He said yes he knows exactly what I am talking about, his car after being warmed up seems hesistant to fire up. I asked for fuel filter check but the tech said it is in the gas tank. I have top speed y pipe and exhaust and drop ins along with a brand new battery and brand new MAF sensors. Anyone else think our cars fire up weak and turn over kinda soft compared to other cars and also how strong our cars turn over when cold starts vs during the day after driving? Hate to have to go back to the dealership and complain but I am 500 miles to warranty and nervous, can i expect anything to be looking bleak or am I over analyzing something that is just inherent in all of our cars

02-04-2012, 08:01 AM	#7 (permalink)
ddvette9 Track Member Join Date: May 2009 Location: Florida Posts: 823 Drives: 2013 Scion FRS Rep Power: 17	What you guys think of this. As far as the maf this what the tech sheet said "checked data monitor alphas very low cleared self learn and performed iavl, af's returned to very low very quickly, confirmed maf failure, replaced maf's. After I left the car still turned over quiet an SLOW. Jordo said our cars take longer than othe cars to start up. He knows his stuff but wanted to get your take on the tech notes