LT1-LT4 Modifications 1993-97 Gen II Small Block V8

TPS? Or OPTI? 02s? Or What?

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Old 05-17-2009, 10:22 PM
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Question TPS? Or OPTI? 02s? Or What?

When i try to crank my car i have to hold the pedel wide open and when it finally cranks its flooding and it will barely run... it has a bad tremble while its trying to idle...

Any thoughts??
Old 05-17-2009, 11:43 PM
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any ses lights?
Old 05-17-2009, 11:49 PM
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im having the same problem let me know when u fix as i would do the same
Old 05-17-2009, 11:55 PM
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ses light comes on for a few secs and goes out... then back on, back and forth...
Old 05-17-2009, 11:56 PM
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ok diablo will do...
Old 05-18-2009, 12:17 AM
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definately get the light scanned. did it suddenly start doing it or have your worked on it recently?
Old 05-18-2009, 12:24 AM
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i tried checking it with a OBD2 scanner but i keeps saying check connection... and i just built 383 and put in it...its been like that since day one i crunk it up..
Old 05-18-2009, 12:32 AM
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check all of the spark plug wires and plugs. double check that the firing order is right all the way around
Old 05-18-2009, 12:40 AM
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ok i got timing on TDC... and brand new plugs and wires... i will double check the plug wires tomorrow if it dont rain again... thanx for ya info
Old 05-18-2009, 09:24 AM
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Plug Wires are correct
Old 05-18-2009, 12:54 PM
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Stumped on this...
Old 05-18-2009, 12:54 PM
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Stumped on this...
Old 05-18-2009, 12:58 PM
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You need to find a way to get the car scanned. I would check all of the fuses, inside the car and under the hood. I would also pull up the rail and prime the car (don't start it) to check to see that you have leaky injectors.
Old 05-18-2009, 01:11 PM
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you think i have to have a OBD1 scanner?
Old 05-18-2009, 01:13 PM
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Originally Posted by Black96transam
you think i have to have a OBD1 scanner?
If your car is a '96 and the PCM and wire harness have never been changed, then no, you need a OBD2 scanner. The fact that you can't scan the car might be a clue to your problems. You might have a blown fuse(s) or a bad PCM.
Old 05-18-2009, 01:32 PM
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the car im building is a '95 TA A4
Old 05-18-2009, 01:34 PM
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Originally Posted by Black96transam
the car im building is a '95 TA A4
See no one would know that seeing your screen name and you not having any information in your sig...

Now for the scanning part, you do need a OBD1 scanner, but you have to do this:

http://shbox.com/1/xraycable.jpg
Old 05-18-2009, 01:53 PM
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yeah.. didn't think bout it.. thanx for the info
Old 05-18-2009, 02:11 PM
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Yes, if it is a 1995 the car will have an OBD II port and OBD I software. If you have a buddy that has a high end OBD II scanner that does both OBD I and II that will work as well.
Old 05-18-2009, 02:40 PM
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thanx.. most people round here has upgraded to the OBD2


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