Coolant sensor
oolega
10-05-2005, 07:06 PM
Can coolant sensor affect RPM.
when car is hot, RPM drops.
please help what i need to do first to push my RPM to the normala position?
when car is hot, RPM drops.
please help what i need to do first to push my RPM to the normala position?
Toysrme
10-05-2005, 10:24 PM
Lower the voltage (cold) the RPM raises, & the ECU adds up to 5% extra fuel & timing a 1/2 step at a time up to 2* advance.
Under 150-158*F of coolant temp, the transmission locks out any over drive gears.
Raise the voltage & RPM drops & the fueling/timing is normal.
I think you've nailed a consistantly bad RPM problem with the CTS. Good self-troubleshooting!
If you check the CTS & it's good, don't underestimate the power of a post air sensor vacuum leak!
Under 150-158*F of coolant temp, the transmission locks out any over drive gears.
Raise the voltage & RPM drops & the fueling/timing is normal.
I think you've nailed a consistantly bad RPM problem with the CTS. Good self-troubleshooting!
If you check the CTS & it's good, don't underestimate the power of a post air sensor vacuum leak!
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