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Old 04-29-2012, 09:08 PM   #51
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Def a large spark plug gap, I think stock is .050 area?
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Old 04-29-2012, 09:17 PM   #52
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That plug gap is way wide.
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Old 04-29-2012, 10:03 PM   #53
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probably doesnt help that the plugs that are in it are all gapped at .063 too.
That is probobly a HUGE part of your problem. either re-gap or replace them
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Old 04-30-2012, 12:14 AM   #54
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well guys it gets WAAAYYY better now....i replaced all the plugs with ngk tr55 platinums gapped at .050.. hasnt acted up yet the way it has before on a short 25 mile drive. it is cold out though. BUT, halfway on the ride the service engine light came on. when i got to where i was going i shut the car off for a minute or two literally and turned it back on, no service engine light. get halfway home and bam service engine light comes back. get home and go to flash codes and the fans turn on etc but the service engine light doesnt flash it just stays lit. this is really puzzling now.
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Old 04-30-2012, 07:34 AM   #55
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certain codes can cause the ECM to ignore all sensors and it will kick the fans on. When I had a LT1 camaro I had a MAF code and it did that
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Old 04-30-2012, 07:56 AM   #56
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yeah I just read about that and that I can't flash codes on the 94 I need a scanner or aldl cable... Lovely.

Still getting new icm though tomorrow hopefully. Anybody have the ability to scan this and live kinda close?
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Old 04-30-2012, 07:59 AM   #57
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the jump the pins trick doesn't work on that?
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Old 04-30-2012, 08:01 AM   #58
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do this: http://www.extreme-check-engine-ligh...%20Decoder.htm
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Old 04-30-2012, 08:18 AM   #59
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You should be able to get one of the parts stores like Autozone to scan the codes for you for free.
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Old 04-30-2012, 08:20 AM   #60
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Already did that...doesnt work. The fans just turn on but the service engine lite stays lit no flash or nothing. I looked it up and found that 94-95 Lt1 you need a code reader or aldl cable

The local advanced and autozone don't have the obd 1 scanner to use
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Old 04-30-2012, 08:38 AM   #61
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You are correct, its obd1 and you can only read codes with a scan tool.
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Old 04-30-2012, 08:39 AM   #62
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Old 04-30-2012, 08:47 AM   #63
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http://www.ttspowersystems.com/DataMaster.html

Free for the first 20 uses.
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Old 04-30-2012, 09:00 AM   #64
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If you wanna buy a cable, lemme know.
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Old 04-30-2012, 09:13 AM   #65
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Thanks bill and Ltb1ow you have another pm
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Old 04-30-2012, 10:05 AM   #66
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Can you verify if you have a 12 or 16 pin connector?

a 94 can have either, I think, 12 pin being able to let you jump pins to flash the codes and 16 being required to use a cable.
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Old 04-30-2012, 10:12 AM   #67
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12 pin still doesn't let you...and that's what I have
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Old 04-30-2012, 10:35 AM   #68
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Ach, that sucks, my cable is 16 pin for a 95. Sorry
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Old 04-30-2012, 02:13 PM   #69
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http://www.aldlcable.com/sc/details.asp?item=aldlobd2u
Thata what you need. I had to buy one form a member on here for my 94...and I downloaded datamaster for free. You get 20 recordings for free. Its a piece of cake to install and easy to use.
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Old 04-30-2012, 05:25 PM   #70
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Thanks guys I'm gonna have to wait till Wednesday to order it and then for it to get here
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Old 04-30-2012, 05:26 PM   #71
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Actually that's still the wrong cable I need the 12 pin one I swear I always get the car thats special
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Old 04-30-2012, 05:50 PM   #72
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http://www.obd2allinone.com/sc/detai...item=aldlobd1u

That one
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Old 04-30-2012, 05:58 PM   #73
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yup thats the same one i found. thanks again.
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Old 04-30-2012, 08:12 PM   #74
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took it for another 15 mile ride, ses light came on about 4 miles in, shut car off for 2 minutes, drove home and 4 miles into that ride ses light came back on. car seems to be running fine otherwise....



i gotta get that cable...

starting to think maybe a computer issue...
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Old 04-30-2012, 10:26 PM   #75
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now the schizoness is back....only things i touched on the entire car tonight was i fiddled with the egr to check its operation and it checked ok, literally unplugged and plugged back in knock sensor and coolant temp sensor for computer, and touched the passenger side o2 sensor since the white wire that has the ground band that wraps around the sensor seemed fishy. now, no check engine light, tons of missing/backfiring.
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