1FASTKINGCAB Posted September 3, 2002 Share Posted September 3, 2002 I would like to fool the ECM into thinking my car is running @ 150° what ohm resistor should I use? Quote Link to comment Share on other sites More sharing options...
DAW Posted September 3, 2002 Share Posted September 3, 2002 640 ohm is supposed to tell the ECU it's 145 degrees. I've read that you have to be careful on later generation ECUs because if the coolant/cyl head temp signal is way off vs the intake air temp signal, then the ECU goes into a default mode that won't yield the performance result you're seeking. So maybe you could start with less added resistance, say about 480, added to both the air temp sensor and the engine temp sensors and go from there. An A/F meter would be useful here. DAW Quote Link to comment Share on other sites More sharing options...
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