Thread: cat coverter
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Old 04-27-2010, 10:50 PM
kevinb70 kevinb70 is offline
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Re: cat coverter

you absolutely have to test items in suspect, rather than replace without a true detection of a part failure. whoever said it was fuel pump without a pressure test is gambling with your money. even OBD-II codes can be misleading.

your issue sounds similiar to one post here recently. i think max mentioned possibly faulty ignition module or ignition coil can cause that condition (runs when engine cold, wont run with engine hot) however i cannot confirm that as my 98 w/184k has original ignition coils and ignition module.

which could be tested with spark tester connected to an old (working) plug wire, pop wire off at the ignition coil, plug old plug wire onto coil (easier to reach than plug boots), ground the spark tester.

if you have a timing light, you can plug the timing light to each of your 6 plug wires... a good spark will strobe the timing light (course you can't set timing with it!)
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