This 1999 Pontiac Grand Prix came in with the Service Engine Soon Light on (SES) and a code P0125. The code refers to an engine coolant temperature excessive time to enter closed loop fuel control fault. Simply put the engine did not come up to operating temperature as quick as the computer thought it should. … Continue reading “1999 Pontiac Grand Prix Code P0125”
2001 Pontiac Grand Am with 2.4 liter engine was brought in with the SES light on and a complaint of tip in acceleration problem and rough idle. The codes that were stored were P0105 for a MAP sensor malfunction, P0172 for a system rich fault and P0300 for a general misfire fault. I opened the … Continue reading “2001 Pontiac Grand Am, Codes P0105, P0172 and P0300”
2001 Mazda Tribute with a 3.0 liter v6 engine Vin 1 and codes P0300 and P0304 stored. The P0304 code is very specific to cylinder #4 so that is where I started. After finding that cylinder #4 was one of the easiest to access I was quite happy. I first removed the coil cover on … Continue reading “2001 Mazda Tribute, Code P0300 and P0304”
This Mazda had several problems, most of which were caused by previous work done to vehicle by others. The P0300 code is for random general misfires, P0304 is also for a misfire but is specific to cylinder #4 and P0401 is for insufficient EGR flow. I started with the easiest code which is the EGR … Continue reading “2001 Mazda Tribute,Code P0401 Stored”
Code P0325 stored in 1997 Nissan Maxima. Because the knock sensor is normally at fault I usually test it first. The knock sensor is located under the intake and is accessible on the driver’s side of the car. Locate the knock sensor subharness connector. It is near the dipstick tube, red knob in center of … Continue reading “1997 Nissan Maxima Code P0325 Knock Sensor”
This vehicle was brought in after being at another shop as usual. Code P0122 was stored for low TPS voltage. Checked the TPS and connector and all was okay. Strangely enough I did some online research and found a post of a similar problem and it related to a 4wd vehicle that had also had … Continue reading “2001 Chevrolet Blazer,4WD, Rough Run, Code P0122, Transmission Replaced Last Year”
Car was dropped off with the check engine light on. Checked codes and found P0442 stored for a small evap leak. Looked vehicle over and found nothing. Did some research and found that the common failure is in the rollover valve located in the top of the fuel tank. What happens over time is that … Continue reading “P0442, 1997 Mitsubishi Eclipse”