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ECMlink Map and 02 problems

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tealgsx

10+ Year Contributor
31
3
Jan 28, 2009
Lincoln, Maine
Ok so after going to the track this past weekend and having all my sensors working fine I know have no o2 lc1 or map sensor being logged. Also the car just wants to run for like a second and then stall. Everything was fine Intill I was trying to start it and popped the main fuse. Battery is in the trunk so like an idiot I tried boosting the car to load it up would run but does what it does know. The car was also throwing a code for engine coolant sensor I found a short to ground on that wire code went away. I have test both the o2 and map sensor at the ecu pins both have voltage my lc1 gauge still works fine I also tested all the ecu sensor grounds and the ecu grounds. My thought is ecu I took it apart but cannot see any problems nothing burnt but I am no expert. Anyone have any other ideas I would be gratefull
 
Ok so the ecu is not In the car right know but in the log the map sensor o2 signal and wideband factor are just not dark they are lighter writing
Sounds like they're no longer being captured. Check the captured values list, not the displayed values, and make sure they're both in there.
 
I have had this happen if I make a change and hit sav to ECU, then kill power to the car right away. I was told you have to wait 5-7 seconds for ECU to power down and save settings and that was my issue.
 
I have had this happen if I make a change and hit sav to ECU, then kill power to the car right away. I was told you have to wait 5-7 seconds for ECU to power down and save settings and that was my issue.
I'm not sure how it happened to me I blew the main fuse trying to start it. It was last call at my local track then we tried jumping it to get it on the trailer. I am saving everything to the computer know thoug
 
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