Dhan
Supporting Member
- 3,772
- 192
- Apr 29, 2010
-
Denver,
Colorado
Some quick background. I'm trying to troubleshoot my '91 Laser with a n/t 4G63 motor. I did a new head and lifters, plugs/wires, new fuel, and timing belts.
The car's got good compression, timing's right, fuel and spark is there. I start it, but it dies unless I give it throttle. So it won't idle at all. Seems to be running a bit rich too.
I've gotten DSMlink to connect with my n/t non-eprom ECU, using the factory system MUT-II. I have one log that I was trying to compare to others, but all other logs are from turbo models.
The O2 sensor looks off in my log, but I don't know how much it differs between the n/t and turbo. I'm in the process of searching the shop manual to see how to check if the O2 sensor is bad.
Does anyone else see anything of interest?
The car's got good compression, timing's right, fuel and spark is there. I start it, but it dies unless I give it throttle. So it won't idle at all. Seems to be running a bit rich too.
I've gotten DSMlink to connect with my n/t non-eprom ECU, using the factory system MUT-II. I have one log that I was trying to compare to others, but all other logs are from turbo models.
The O2 sensor looks off in my log, but I don't know how much it differs between the n/t and turbo. I'm in the process of searching the shop manual to see how to check if the O2 sensor is bad.
Does anyone else see anything of interest?
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