Chugging, maybe Fuel Injectors??
Thread Starter
Junior Member
Joined: Jan 2002
Posts: 76
Likes: 0
From: Tucson, AZ
Car: 87 Trans Am
Engine: 305 TPI
Transmission: 700r4
Chugging, maybe Fuel Injectors??
For awhile now at slow speeds my T/A makes a chugging sound until i give it some gas, on the highway it flies, but around town it has a problem going slow....
I thought it might be the fuel injectors, and i've used injector cleaners very often, but it still doesn't seem to fix the problem.
Any suggestions??? Can it be anything else??
I thought it might be the fuel injectors, and i've used injector cleaners very often, but it still doesn't seem to fix the problem.
Any suggestions??? Can it be anything else??
Supreme Member
iTrader: (1)
Joined: Jul 1999
Posts: 1,334
Likes: 1
From: Key West, Florida!
Car: 89RSconvtZZ4TPI
Engine: ZZ4TPI
Transmission: 700R4 TRIPP TRANNY
I would bet if you checked on a scanner you would see your pulse width on your injectors is big, like 2.7 or above at idle. When you get into the throttle a little, the pulse width decreases to around 2.1 or 1.8 and the car smooths out. A faulty O2 sensor is probably the cause. I am dealing with this exact situation now.
This is one simplistic explaination. I don't have all the facts on your car and am only making an educated guess. I'd say get a scanner and see what the car is really doing.
This is one simplistic explaination. I don't have all the facts on your car and am only making an educated guess. I'd say get a scanner and see what the car is really doing.
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