Went to Advance Auto today to borrow their reader and check the reason for the CEL, but theit reader did not function when plugged in. I had the ignition on but no action from the reader. I did not start my SHO. Where did I go wrong? a guy from Advance was helping me and he was at a loss also.
Pulling engine codes
- Thread starter tomm
- Start date
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A bad ECM caused my reader not to read my codes. However if you have a CEL the computer should give a reader codes. Did you try the paperclip?
Phoenix
SHOHOLIC
I like that CEL gif animation you have. Very apt!
Phoenix
SHOHOLIC
Just to clear this out , it's unfortunatly not my work (the website) But it sure is handy 
GreenShoOwner
New Member
could the reader display 3 digits? I know that screwed up my mechanic something feirce. ...I ended up using an oscilliscope (in lieu of an analog voltmeter, that I didn't have) to let the EEC tap out the codes. ....If it only displays 2 digits, that could be the reason why.
Thanks,
Your instructions are great, I will give it a try tomorrow and see what comes up. Will let you know the results. Thanks again Tomm
Your instructions are great, I will give it a try tomorrow and see what comes up. Will let you know the results. Thanks again Tomm
not to bootleg, however will the codes still show if the light goes off? meaning: CEL comes on intermittently while undernormal highway driving. o2 sensors have been replaced and recent (yet very late 60k) has been done at around 110K..lol it seems to shut off prior to me pulling into the driveway. it also stays on the highway for anywhere from 8-15 seconds. what could cause this? I will also pull the codes tomorrow morning in sunlight.
Brett
SHOs before HOs
I had the same problem, brought my 94 ATX to a mech had him plug in his fancy snap on reader and the car wouldn't respond. Plugged it into a cheap code reader still no reponse. Decieded my ecu must be fugged up. Got my 93 mtx, plugged in the code reader, still doesnt work... All those times i plugged in the one big plug and not the little gray one thats next to it. I have to assume the mechanic made the same mistake because now my old atx reads fine to the code reader. So even though it sounds dumb just make sure both plugs are plugged in. hope the problem is this easy.
ultimatesho
New Member
IMHO use a paper clip much much much much cheaper and easier.........did this last night and it worked great (except i cut the end off a sparkler, because i couldnt find a paperclip.....lol)
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