k204drek Posted December 13, 2012 Share Posted December 13, 2012 I thought i had it fixed but it stills runs like crap. I relplaced the chts but it still rins like crap with it plugged in and runs perfect with it unplugged. Quote Link to comment Share on other sites More sharing options...
cgsheen Posted December 13, 2012 Share Posted December 13, 2012 (You knew you were going to get this one...) Then, something else is wrong. The Factory Service Manual shows you how to test every component in the ECCS system on the L28ET. The tests aren't hard and don't require special electronics. All you need is a Harbor Freight Multimeter (and a little patience)... Don't forget to check vacuum and intake leaks. Most important - wiring and electrical connectors on the harness. Make sure the wiring and connections are good from every part and / or sensor all the way to the ECU. Double check all the ECU socket connectors and pins. Clean and de-ozidize everything - then do it again... Don't discount the possibility that someone in the past made other "adjustments" to that system to make it run - rather than finding the actual problem and repairing it... And, most of all, HAVE FUN! Quote Link to comment Share on other sites More sharing options...
Josh280z Posted December 13, 2012 Share Posted December 13, 2012 If I recall correctly this happened to someone else just a little while ago, use a search and have a nice day Quote Link to comment Share on other sites More sharing options...
k204drek Posted December 14, 2012 Author Share Posted December 14, 2012 Yeah i red that 3 page thread and tried it all nothing worked. Ive been threw the FSM as well replaced the CHTS still runs better with it plugged in reset the timing reset the ecu fixed all the vaccuum leaks. Quote Link to comment Share on other sites More sharing options...
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