Mechanics

CHEVROLET S-10 FUEL PRESSURE PROBLEM

2003 Chevrolet S-10 • 145,000 miles

In the morning when you lightly touch the gas the motor seems to have a miss but goes away with heaver acceleration. I don't know if the 0420 code has anything to do with it. I replaced all 3 of the 02 sensor and added a adapter to the 02 after the cat since I had to hollow out the cat. The check engine light comes back on every several thousand miles.
Avatar
Fleagle0202
December 9, 2012.




Scan for codes and check fuel pressure first

Hmac300
Dec 9, 2012.
If you could explain more detail where your going with your answer that would help.
Your answer is not helpful to me at all I would wish someone that fully understands the question should or would answer.
AD

Tiny
Fleagle0202
Dec 9, 2012.
The 420 codes means it 's a catalytic converter problem andyou should check yoru fuel pressure because it can cause all kinds of problems similar toyours. Has this truce ever had spark plugs cheanged and ignition system checked as spark plugs can do that as well. Auto part store rent gauges.

Hmac300
Dec 9, 2012.
Fuel pressure is fine spark plugs are the 100,000 plugs they have been changed about 30K miles ago also wires cap and rotor.

Tiny
Fleagle0202
Dec 9, 2012.
What is fuel pressure? Fine isn't a good answer

Hmac300
Dec 9, 2012.

AD