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Old 11-11-2005, 05:01   #1 (permalink)
kojmorbid
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Check Eng Light on only when I accelerate - Help

Hi,
I have been getting a Check Engine Light only when I accelerate when I
drive, once I let off the gas the light goes out. Any thoughts on where
to
start troubleshooting - The car is old 88 t-bird V8 169K miles - I really
don't notice any serious issues caused from it, I am thinking it may be a
pressure issue, like a vacuum leak or fuel injection problem. Your
thoughts???
Thanks,
Tony

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Old 11-11-2005, 05:01   #2 (permalink)
Backyard Mechanic
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Re: Check Eng Light on only when I accelerate - Help

"kojmorbid" <kojmorbid@yahoo.com> wrote:

> Hi,
> I have been getting a Check Engine Light only when I accelerate when

I
> drive, once I let off the gas the light goes out. Any thoughts on where
> to
> start troubleshooting - The car is old 88 t-bird V8 169K miles - I

really
> don't notice any serious issues caused from it, I am thinking it may be

a
> pressure issue, like a vacuum leak or fuel injection problem. Your
> thoughts???
> Thanks,
> Tony
>


probably egr related; once you get the charging prob fixed have the codes
read out.


--
Yeh, I'm a Krusty old Geezer, staving off dementia here..DEAL with it!
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Old 11-11-2005, 06:01   #3 (permalink)
MasterBlaster
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Re: Check Eng Light on only when I accelerate - Help


"kojmorbid" wrote

> I have been getting a Check Engine Light only when I accelerate when I
> drive, once I let off the gas the light goes out. Any thoughts on where
> to
> start troubleshooting - The car is old 88 t-bird V8 169K miles - I really
> don't notice any serious issues caused from it, I am thinking it may be a
> pressure issue, like a vacuum leak or fuel injection problem.


If you have a little piece of wire, you can check the codes yourself...

http://www3.telus.net/neatcrap/eec4.gif

The connectors are on the driver's side, by the strut tower.

Hook up the wire, get in, turn the key to "on" (not start) and count the flashes.

Here's a car with code 23 "now" and 46 "continuous" (in memory).....

******.......*.*...*.*.*.....*.*....*.*.*.........*..........*.*.*.*....*.*.*.*.*.*.....*.*.*.*....* .*.*.*.*.*

Ignore initial flashing, 2, 3, pause, 2, 3, big pause, 1, big pause, 4, 6, pause, 4, 6

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