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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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2000 chev prism running lean at idle

Customer Question

2000 chev prism running lean at idle
Submitted: 1 year ago.
Category: Chevy
Expert:  Roy replied 1 year ago.

good afternoon my name is ***** ***** I will assist

do you have any codes??? how do you know it is running lean???

Roy

Customer: replied 1 year ago.
I have a code 171 at idle long term trim is 39 at 2500 rpm's long term trim is 20 at idle short term trim is 10 at 2500 rpm's -2 freeze frame data 40 miles an hour 2400 rpm's it sets the coat I have smoke tested the engine can find no leaks anywhere
Expert:  Roy replied 1 year ago.

have you had the system smoke tested for any leaks???

Roy

Customer: replied 1 year ago.
I have a cold one 71 I have done a smoke test and found nothing long-term trim at Idol is 39 long-term trim At 2500 RPM's is 20 please let me know
Expert:  Roy replied 1 year ago.

ok, lets back up. what is the exact fuel pressure????

Roy

Customer: replied 1 year ago.
I need help
Expert:  Roy replied 1 year ago.

do not see the request for a phone call.

Roy