This week I noticed a problem with my ECM when the car got warmed up. It would intermittently go to Open Loop mode and all the codes got completely screwed up, the tool said the tranny was in D/R when it was really in P/N, the RPMs were WAY off, speed was way off, the car was running like crap, etc.
Today I found the problem...it turned out that this was happening when the coolant fan kicked on. I pulled the switch and relays and they are toast. All kinds of sticky black stuff around the terminals. So I started the car with them removed and it hasn't done the weird thing yet. Ordered new relays and a switch, they'll be here Monday.
A question...should I suspect my ECM after submitting it to that kind of abuse for who knows how long? My O2s are WAY off, but I suspect old injectors for that one.
Thoughts?
thanks,
Jeff
Today I found the problem...it turned out that this was happening when the coolant fan kicked on. I pulled the switch and relays and they are toast. All kinds of sticky black stuff around the terminals. So I started the car with them removed and it hasn't done the weird thing yet. Ordered new relays and a switch, they'll be here Monday.
A question...should I suspect my ECM after submitting it to that kind of abuse for who knows how long? My O2s are WAY off, but I suspect old injectors for that one.
Thoughts?
thanks,
Jeff