Thats why you can use a 03-07 pcm in a 99-02 Fbody and they still work because on those the harness provides ground, but not the reverse?
Have a 06 PCM in a 03 truck, and it seems like the heaters arent active - or may be just very lazy O2s?
Thats why you can use a 03-07 pcm in a 99-02 Fbody and they still work because on those the harness provides ground, but not the reverse?
Have a 06 PCM in a 03 truck, and it seems like the heaters arent active - or may be just very lazy O2s?
Factory Stock 97 SS M6 13.51 @ 104.3 mph
Stock Longblock LS1 w/ 233/238 P.S.I. Cam
10.81 @ 126.9 Full interior, six speed on 275 radials, a decade ago
'99 TA trunk mounted 76mm 6 Liter
9.0s in '09 @ 153 MPH
Turbo 5.3 Volvo 740 Wagon
32psi and still winding out 5th on the highway somewhere
????
Factory Stock 97 SS M6 13.51 @ 104.3 mph
Stock Longblock LS1 w/ 233/238 P.S.I. Cam
10.81 @ 126.9 Full interior, six speed on 275 radials, a decade ago
'99 TA trunk mounted 76mm 6 Liter
9.0s in '09 @ 153 MPH
Turbo 5.3 Volvo 740 Wagon
32psi and still winding out 5th on the highway somewhere
Yes heater ground circuit goes to the PCM and it PWM. We do not have access to those PWM tables with HPT. Heater is grounded in the main harness on the vehicles equipped with the P01 PCM.
2003 truck should have been P59.
James Short - [email protected]
Located in Central Kentucky
ShorTuning
2020 Camaro 2SS | BTR 230 | GPI CNC Heads | MSD Intake | Rotofab | 2" LT's | Flex Fuel | 638rwhp / 540rwtq
2002 Camaro | LSX 427 | CID LS7's | Twin GT5088's | Haltech Nexus R5 | RPM TH400
Any ideas why heater circuits dont seem to be coming on then?
Also take a look at this thread if you could, your pretty well versed in the different OSs and may be one of the few people who might have an idea https://forum.hptuners.com/showthrea...nding-properly
Factory Stock 97 SS M6 13.51 @ 104.3 mph
Stock Longblock LS1 w/ 233/238 P.S.I. Cam
10.81 @ 126.9 Full interior, six speed on 275 radials, a decade ago
'99 TA trunk mounted 76mm 6 Liter
9.0s in '09 @ 153 MPH
Turbo 5.3 Volvo 740 Wagon
32psi and still winding out 5th on the highway somewhere