eshardball
New Member
- Joined
- Oct 9, 2012
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Hi folks,
Workin on my GFs 2001 V8 Tahoe. Got codes 0122, 0200, 0300 and an evap code that is the least of my problems. Found that I only have 2.2VDC going to the TPS. Just for ****s & giggles, I checked the signal to the MAPP and it was 4.75 since it is from the same output section of the PCM. Pulled the RED and Blue harnesses from the PCM and tested wire #20 , Grey power wire to the TPS which was good. The TPS is less than a year old but with only 2.2 VDC going to it, I'm thinking that the PCM is bad. Truck has less than 160K on it.
Am I overlooking looking anything before replacing the PCM? I'm, attributing the other misfire codes to the low input voltage to the TPS.
Thanks in advance
Workin on my GFs 2001 V8 Tahoe. Got codes 0122, 0200, 0300 and an evap code that is the least of my problems. Found that I only have 2.2VDC going to the TPS. Just for ****s & giggles, I checked the signal to the MAPP and it was 4.75 since it is from the same output section of the PCM. Pulled the RED and Blue harnesses from the PCM and tested wire #20 , Grey power wire to the TPS which was good. The TPS is less than a year old but with only 2.2 VDC going to it, I'm thinking that the PCM is bad. Truck has less than 160K on it.
Am I overlooking looking anything before replacing the PCM? I'm, attributing the other misfire codes to the low input voltage to the TPS.
Thanks in advance
