Idle problem is fixed...
Thread Starter
Drifting
Joined: Oct 2001
Posts: 1,351
Likes: 20
From: Back in San Diego Ca
Idle problem is fixed...
After replacing a few things and just now I replaced the Check valve on the brake booster. After replacing the valve I went for a drive and my vette stalled, but didn't throw a code. The check engine light came on but didn't give a code. This happened before and it was a MAF code. So I let the motor idle in park and unplugged the MAF, and the idle went from 1000 to around 650. I plugged the MAF back in and the car is running fine now, I am idling in park anywhere from 590 to 650. I don't know if I reset the MAF readings or what. I have never heard of resetting the MAF before. Is there such a thing?
Burning Brakes
Joined: Aug 2001
Posts: 1,238
Likes: 0
From: walled lake MI
Re: Idle problem is fixed... (OrangeC4)
... I have never heard of resetting the MAF before. Is there such a thing?
check the MAF connector for anything that might hint at a loose connection (loose terminals, crap on the terminals, etc...)
Safety Car
Joined: Jan 2002
Posts: 4,714
Likes: 0
From: Jeffersonville Indiana
Cruise-In III Veteran
Re: Idle problem is fixed... (Sharky Guam)
My connecter needs replaced. Every now and then it throws a check light so I wiggle the connecter then everything is fine.
Drifting
Joined: Mar 2001
Posts: 1,636
Likes: 3
From: Lafayette IN
Re: Idle problem is fixed... (OrangeC4)
Good to hear she is doing well.
Yeah, the MAF connector is kinda odd. 5 pins in a really small amount of space. Lots of movement up there too from engine torquing. I would say it was just a bad connection. I'm gonna stick with that story until you post the same problem again :D
If it happens again, take a screwdriver handle and give the MAF a light but prominent tap. If the idle speed changes again, it could be time for a new MAF :eek:
Yeah, the MAF connector is kinda odd. 5 pins in a really small amount of space. Lots of movement up there too from engine torquing. I would say it was just a bad connection. I'm gonna stick with that story until you post the same problem again :D
If it happens again, take a screwdriver handle and give the MAF a light but prominent tap. If the idle speed changes again, it could be time for a new MAF :eek:
Race Director
Joined: Jul 2000
Posts: 15,921
Likes: 0
From: College of Charleston, SC
Cruise-In IV Veteran
Cruise-In V Veteran
Cruise-In VI Veteran
Re: Idle problem is fixed... (OrangeC4)
My 91 seems to do the same thing. It only stalls when I let off the gas, and only sometimes then. Everything else seems fine. I don't have MAF, it's MAP, speed density. I have replaced the fuel pressure regulator and the IAV valve with no luck.
EGR valve maybe? The computer threw a code 32 about a week ago, but it hasn't come back yet. When I shut off the car, there is a hissing noise from the engine bay, not sure from what. Vacum leak maybe?
[Modified by vettes rule, 2:50 PM 6/4/2002]
EGR valve maybe? The computer threw a code 32 about a week ago, but it hasn't come back yet. When I shut off the car, there is a hissing noise from the engine bay, not sure from what. Vacum leak maybe?
[Modified by vettes rule, 2:50 PM 6/4/2002]
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