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

96 ta-ws6

Old 12-16-2008, 10:02 PM
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Need Help, friends car. Car starts, runs good then right when it seems to go into closed loop it kills and won't start for an hour or 2. Changes made are:
Cranksensor; maf; opti spark; coil w/ module;plugs; wires;both cats;02's about a year ago. Most of these parts have been changed twice. Computer keeps throwing codes after parts are changed and computer has been cleared, any help sure would be appreciated. TIA.
Old 12-16-2008, 10:06 PM
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if hes shooting a code the low and high res its the opti... I would start with simple stuff like o2 sensors. but thats exactly what happened to me and it was the opti...
Old 12-16-2008, 10:23 PM
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The opti spark has been changed twice this year, all the 02's about a year ago. The car only has 82,xxx original miles.
Old 12-17-2008, 01:49 AM
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post the codes..
Old 12-17-2008, 09:19 AM
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The codes were for everything that has been changed, the original post. But even after the parts were change, 2 opti sparks and 2 coil / modules, the codes cleared, the same codes keep appearing. The EGR was also changed. Could the computer be bad.
Old 12-17-2008, 09:34 AM
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Same thing was happening to me when I had an opti problem.


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