My check engine light has been on since the day that merlin tuned my car and so I went to visit meek ... very disappointed with his customer service and how he treats his employees BTW... we plugged in the MUTIII tool and it came up with Barometric Pressure Sensor AKA MAF fault and the two rear wheel speed sensors. Cleared the fault codes, turned the car off, back on again and the speed sensors came up with a fault again but there was no error code logged on the system.
Finally we took the car for a spin around the block to see if the sensors were sending data to the ECU which they were... all 4 sensors were showing the same speed indicating they were in perfect working order. Ran the diagnostic again and it said both rear wheel speed sensors were open circuit and the MAF is faulty.
Can someone please give me an idea of what could be causing these error codes? I find it strange that the check engine light never came on before I got the car tuned and then suddenly once its tuned it says it has 3 faults... Could it be something to do with the tune? Its a very strange scenario, my mechanic "AGM Automotive in Hornsby" (a very good mechanic who loves evos and vr4s) and chris meek both agree its weird and they've never come across anything as strange as this error
Finally we took the car for a spin around the block to see if the sensors were sending data to the ECU which they were... all 4 sensors were showing the same speed indicating they were in perfect working order. Ran the diagnostic again and it said both rear wheel speed sensors were open circuit and the MAF is faulty.
Can someone please give me an idea of what could be causing these error codes? I find it strange that the check engine light never came on before I got the car tuned and then suddenly once its tuned it says it has 3 faults... Could it be something to do with the tune? Its a very strange scenario, my mechanic "AGM Automotive in Hornsby" (a very good mechanic who loves evos and vr4s) and chris meek both agree its weird and they've never come across anything as strange as this error