What happens if the p0641 sensor is reset?
If the PCM enters readiness mode, the repair was successful. If the code is reset, the PCM will not enter readiness mode and you will know that you still have a problem. The severity of a stored P0641 depends upon which sensor circuit is experiencing an open condition.
What is the p0641 code on a Chevy Cobalt?
P0641 has been the common denominator of the recent issues of my ’07 Cobalt with 2.2 L EcoTec engine. A year ago, it came up with an engine reduced power over the display and a P0641 code and the camshaft position sensor code. I replace the sensor and it still happened. Then I took it to a GM dealer they said it was the ECM and replaced it.
How much does it cost to diagnose a p0641 code?
Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The cost of diagnosing the P0641 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour. When is the P0641 code detected?
When is the code detected in the control module?
When is the code detected? The control module has 2 internal 5-volt reference buses called “5-volt reference 1″ and”5-volt reference 2”. Each reference bus provided 5-volt reference circuit for more than one sensor.
If the PCM enters readiness mode, the repair was successful. If the code is reset, the PCM will not enter readiness mode and you will know that you still have a problem. The severity of a stored P0641 depends upon which sensor circuit is experiencing an open condition.
Is the p0641 code related to the FTP sensor?
The P0641 code is related to the following sensors: MAP, FTP, A/C, APP, and CMP. I was thinking maybe my long starting is related to the FTP sensor because of these long starts? It is apparent to me this is an electrical issue, maybe a sensor or wiring shorting out causing an open circuit.
What does the p0641 code on a Silverado Sierra mean?
If I park at a store run in for a few minutes and come back out is when this long crank happens. The starter was replaced and this did not change anything. The P0641 code is related to the following sensors: MAP, FTP, A/C, APP, and CMP.
When to use DTC p0641 on Chevy Cobalt?
• DTCs P0641, P0642, P0643, P0651, P0652, P0653, P0697, P0698, and P0699 run continuously when the above conditions are met. These DTCs set when the ECM detects a voltage out of tolerance condition on the 5-volt reference 1, 2 or 3 bus for more than 3 seconds.