I can't find the ones you posted but the code's P0422 and p0432 is the same code description warm up catalyst efficiency below threshold bank 1 and 2 I posted the code descriptions and the trouble tree's for you the first two posted ones is the code P0422 and the number 3 and 4 images is the code P0432. Let me know what you find.
The catalyst is a device used to control emission content. Although the catalyst is active as soon as exhaust gas is passed through it, this diagnostic will not run until the front and rear oxygen sensors are both in open loop. The oxygen storing capability of the catalyst is monitored by viewing the rear oxygen sensor's response to an oscillating air-fuel ratio. The ECM computes how a near-failure catalyst would cause a rear oxygen sensor to react to an oscillating air-fuel ratio. These values are compared with the actual rear oxygen sensor response. If the actual response deviates a calibrated amount from the computed values, this code will set.
DTC PARAMETERS
DTC P0422 will set when:
* Closed loop is enabled
* Engine Speed is between 1400 and 2200 rpm
* Catalyst temperature greater than 380°C (716°F)
* No front or rear, misfire, MAF, TP, purge solenoids codes set
DTC P0422 a (type B) DTC.
DIAGNOSTIC AIDS
Once set, this code should remain active. Under certain driving conditions the catalyst monitor test may pass. This condition may occur if driving the vehicle at highway speeds (high air flow) but if this code is set, and there are no exhaust leaks, the converter should be replaced. If a misfire code is detected, the catalyst monitor test will not run. Be sure to correct a misfire condition before replacing the converter.
Possible causes:
* Exhaust system leaks between front and rear sensors, or rear sensor leaking.
* Catalyst deteriorated due to excessive time operating vehicle with a catalyst damaging misfire.
* Contamination of converter due to incorrect sealant, fuel, or fuel additive.
The catalyst is a device used to control emission content. Although the catalyst is active as soon as exhaust gas is passed through it, this diagnostic will not run until the front and rear oxygen sensors are both in open loop. The oxygen storing capability of the catalyst is monitored by viewing the rear oxygen sensor's response to an oscillating air-fuel ratio. The ECM computes how a near-failure catalyst would cause a rear oxygen sensor to react to an oscillating air-fuel ratio. These values are compared with the actual rear oxygen sensor response. If the actual response deviates a calibrated amount from the computed values, this code will set.
DTC PARAMETERS
DTC P0432 will set when:
* Closed loop is enabled
* Engine Speed is between 1400 and 2200 rpm
* Catalyst temperature greater than 380°C (716°F)
* No front or rear, misfire, MAF, TP, purge solenoids codes set
DTC P0432 a (type B) DTC.
DIAGNOSTIC AIDS
Once set, this code should remain active. Under certain driving conditions the catalyst monitor test may pass. This condition may occur if driving the vehicle at highway speeds (high air flow) but if this code is set, and there are no exhaust leaks, the converter should be replaced. If a misfire code is detected, the catalyst monitor test will not run. Be sure to correct a misfire condition before replacing the converter.
Possible causes:
* Exhaust system leaks between front and rear sensors, or rear sensor leaking.
* Catalyst deteriorated due to excessive time operating vehicle with a catalyst damaging misfire.
* Contamination of converter due to incorrect sealant, fuel, or fuel additive.
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Sunday, March 27th, 2011 AT 11:57 PM
