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2005 Mazda Tribute Problems
The DPFE (differential pressure feedback EGR) sensor tends to fail. The DPFE sensor monitors function of the EGR valve by measuring pressure changes in the exhaust gas recirculation (EGR) system. Symptoms of a failing DPFE sensor are hesitation or stumbling when driving along with illumination of the Check Engine Light.
If the engine is misfiring, it may be caused by a damaged wire(s) which connect the fuel injectors to the Powertrain Control Module (PCM). The damaged wire(s) can be repaired or the emission wire harness replaced. A misfire can result in a loss of engine performance and illumination of the Check Engine Light.
If the engine stalls after a cold start (the vehicle has been parked for a while), the idle air control (IAC) valve may be sticking. It may be fouled with carbon buildup. If cleaning the valve does not solve the problem, replacement will be needed.
Applies to 2005 Tribute 3.0L Engine ONLY. Some 2005 Tributes with a 3.0L Engine may exhibit a malfunction indicator lamp (MIL) ON with two or more diagnostic trouble code (DTCs) for coil-on-plug (COP) primary circuit faults (P0351, P0352, P0353, P0354, P0355, P0356). This may be due to the spark plugs causing RF interference with the PCM resulting in damage to the PCM and COPs.
If there are two (2) or more coil circuit primary DTCs when run...