cant pull codes
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Joined: Jun 2014
Posts: 180
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From: Chantilly, VA
Car: 88 Chimera
Engine: 1994 LO5 5.7L
Transmission: 700R4
Axle/Gears: 2.73...?
Re: cant pull codes
Are you following the process exactly right?
Originally Posted by torque_is_good
the ALDL port (assembly line diagnostic link) is located above your right knee when you are in the drivers seat.
You want to take a paper clip and jumper the top 2 right pins together. Then, turn your key to "run" but do not start the car.
the CEL (check engine light) should blink once, and then twice which is code 12 or that it's in diag mode. It will do that 3 times and if there is another code, it will then flash the code such as blink 4 times and then 3 times. That is a code 43. it would do that 3 times. If there is another code it will then blink for that code. if there are no more codes, it will revert back to the 12 and blink that again
you then shut off the key, remove the paper clip and SEARCH for the codes as they have all been discussed many many many times on this as well as other sites. The newest 3rd gen is now 20 years old so feel confident that all the codes have been discussed exhaustively.
You want to take a paper clip and jumper the top 2 right pins together. Then, turn your key to "run" but do not start the car.
the CEL (check engine light) should blink once, and then twice which is code 12 or that it's in diag mode. It will do that 3 times and if there is another code, it will then flash the code such as blink 4 times and then 3 times. That is a code 43. it would do that 3 times. If there is another code it will then blink for that code. if there are no more codes, it will revert back to the 12 and blink that again
you then shut off the key, remove the paper clip and SEARCH for the codes as they have all been discussed many many many times on this as well as other sites. The newest 3rd gen is now 20 years old so feel confident that all the codes have been discussed exhaustively.
Thread Starter
Junior Member
Joined: Jul 2014
Posts: 65
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From: caldwell idaho
Car: 1991 camaro rs v6
Engine: v6 3.1
Transmission: auto
Re: cant pull codes
ive put an obd1 reader on it the inova reads other cars fine but not mine and i know there is something wrong especially when the CEL is on so im confused even took it to a shop they cant get anything
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