running rough

cstemm

Registered User
I am trying to figure out my problem. I get codes for 41 and 91, hego lean on both sides. Yet the car sounds like it is missing, and the motor shakes. But when I went for the echeck, I failed horribly. Hydrocarbons legal limit is 283 ppm. I failed with 1753 ppm. Any help is great. Thanks Chris
 
no

car idle's great, however i am getting a code 72. Im not exactly sure what it means, but I think it is somthing about the computer resetting? Any help is great. chris
 
Code 71 KOER is the goose test. What type of tester did you use? Did it ask you to goose the throttle during the test? I wouldnt worry about the 71... this link is for 2 digit codes http://www.autoemf.com.au/2digit.htm
Are you still getting 41 & 91 or did you reset the memory?
 
still bad

I have been reading, and found that 72 is possibly an eec reset because of interference or noise. Not ever heard of it, but that is what they said at autozone. Still get the 41 and 91. Thanks
 
Stick your finger into the tailpipe and wipe the inside of the pipe.
Is there a lot of black carbon in there? :D
If yes its running rich ...
If not then your motor is probably running lean and it may be the fuel delivery system. How does it run under load & at high rpm?
Check the fuel pump pressure & fuel filter..
 
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