...ECM detecting that EVAP system is unable to achieve or maintain vacuum during test. Symptoms There will be no obvious symptoms to driver, other than MIL illumination. Causes A code P0446 could mean ...
Question about Cars & Trucks
...ECM was bad so I replaced it. ... Once I get the $$$ together to test/replace, I'll update you on if it .... Someone pleasetell me how to fix this. ... In automotive electronics, BCM (body control ...
...Bad ECM/PCM SOLUTIONS: 1. It is possible to use a diagnostics scan CPU to command the purge valve to operate, manually. Listen or feel for a clicking coming from the purge solenoid. It should click ...
...ECM determines that the O2 sensor voltage was too low (less than .4 Volts) for too long (for more than 20 seconds (time varies with model)), this code is set. Depending if the problem is intermittent ...
...bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.P1391 - Rough Road Sensor ...
...bad injectors, then we replaced the whole ignition lead set, and eventually it was a fault in the ECM. It was found by substitution.
BTW to be certain if you try the ECM, get one from the same ...
Question about Cars & Trucks
...could also be part of the problem. Bad sensor = ECM thinks engine is warmer than it is and provides too lean a mixture. But fix the crank sensor issue first since that affects the fuel
Question about Chevrolet Prizm
...ECM to the Map sensor. New map sensor, new speed sensors(both)and wiring is good. on most PCMs the PCM passes ground (input to PCM) out to the sensors. so if that ground is bad all are. this is done ...
...ECM detecting that EVAP system is unable to achieve or maintain vacuum during test. SymptomsThere will be no obvious symptoms to driver, other than MIL illumination. CausesA code P0446 could mean one ...
...ECM detects low HO2Sensor voltage for an extended period, it will set P0136 Conditions required to set: HO2 sensor voltage is low for longer than 2 minutes (minutes depend on model of vehicle. Could ...
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