fuel trim corrections - Car Troubleshooting


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fuel trim corrections

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machinist
Anonymous Poster

Apr 22, 2009, 2:00 PM

Post #1 of 4 (3726 views)

fuel trim corrections	Sign In

I have a 1997 ford explorer v-6 sohc engine, and a Actron cp9180 auto scanner plus. I cannot get any short or long term fuel trim correction readings. I have All-Data DIY, and it says this vehicle does not support individual oxygen sensor fuel trim adjustments, there is nothing wrong with the vehicle, I just wanted to know if this is correct and you cannot get any fuel trim readings from this vehicle.

Loren Champlain Sr
Veteran / Moderator
Loren Champlain Sr profile image

Apr 22, 2009, 2:16 PM

Post #2 of 4 (3725 views)

Re: fuel trim corrections	Sign In

machinist; The fuel trims are not adjustable. They are viewable on live data and freeze frame data on a Snap-On scanner.
Loren
SW Washington

way2old
Veteran / Moderator
way2old profile image

Apr 22, 2009, 2:36 PM

Post #3 of 4 (3724 views)

Re: fuel trim corrections	Sign In

The 97 bwill give short and long term readings. If you are reading in the Global OBDII system, you can find the readings there.

Being way2old is why I need help from younger minds

machinist
Anonymous Poster

Apr 22, 2009, 4:00 PM

Post #4 of 4 (3714 views)

Re: fuel trim corrections	Sign In

Thanks for the advice, I have tried all that you've have suggested with I think no results, except I get the reading -100.6. for all the short term and long term readings, and I do not think it is running lean because I do not have any codes and it just passed smog. But I will try to run some carburetor fluid thru it and see if the mixture will get richer.

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