05-09-2015, 05:00 AM
I think I finally understand now, I need to:
1. Clean the ISC and set its duty cycle to 50% using a scope or DMM on 20vdc scale--with the scope or DMM on the ISC turn the TV stop screw until the scope shows a symmetrical wave form or multi meter shows 7vdc.
2. Clean and calibrate the TPS to 0.086" gap between the screw and stop lever.
I will also make sure there are no vacuum leaks in the air lines and make sure the EGR is clean and working, and check the fuel system for any issues.
1. Clean the ISC and set its duty cycle to 50% using a scope or DMM on 20vdc scale--with the scope or DMM on the ISC turn the TV stop screw until the scope shows a symmetrical wave form or multi meter shows 7vdc.
2. Clean and calibrate the TPS to 0.086" gap between the screw and stop lever.
I will also make sure there are no vacuum leaks in the air lines and make sure the EGR is clean and working, and check the fuel system for any issues.