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Discussion Starter · #1 ·
Hello my dear experts.

Need your help on a cold rough idle on my GTV6. The car does not rev properly and acts like when your cats are plugged up. When it warms up, it starts running fine.
1. The pass side thermo switch that sends signal to the cold start valve shows
Cold status = 3500 ohms
Warmed up = 200 ohms
2. The middle sending unit on the thermostat housing that controls the cold injection shows
Cold satus = 200 or so ohms
Warm status = over 2000 ohms? Should this be the opposite? What are the chanses that two used units are showing similar numbers. I heard cold shoud be higher than when it warms up?

Any thoughts?
Thanks
 
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