This P0201 code means cylinder injection circuit malfunction and it may look formidable but if you have a troubleshooting diagnostic tree, it should be easy for you. Shown is a sample diagnostic tree below that you can see. All the confusing terms here are available at ATS as shown below the diagnostic tree.

Here are the […]

If your dash is flashing a service light and has a TPS sensor fault code, try these:
Find out the signal wire of the tps sensor using a wiring diagram. On older vehicles, tps sensor has a 3 wire connections namely the reference wire , ground wire and signal wires. When testing the signal wire, turn […]

Whenever you get an oxygen sensor code such as P0172 or P0174 codes, reset if first by disconnecting the battery terminal (-) connection for 1 minute and reconnect. This way you can road test it and verify the code itself if it is a temporary or permanent code. In the case of the latter, here […]

Do you realize that if you have a faulty oxygen sensor, your gas mileage will be screwed? Think again, oxygen sensor is like your gas mixture adjustment in your old carburetor system so that if it is not set up properly, the mixture will either rich or lean. Meaning, bad gas consumption whereas oxygen sensor […]

If after you serviced the mass sensor, it does not work then what’s up?
Servicing the mass sensor is widely discussed in ATS and you can even see the ATS video on how it is done. However, sometimes it is not enough and you still have to check the mass sensor wires. Also, make sure the […]

Simple trany wiring tests that you can do yourself
Let’s say for example we have a Ford Ranger with a trany in limp mode and a P1747 code. In this example we will use a 1996 model and reading the trany wiring diagram, there are 3 main solenoids being powered by the pcm power relay. Checking […]

If you verify your trany circuit wirings…you will get the whole picture of the trany problem!
Now that you know the symptoms of your trany fault code, find out if it is trany related. Harsh shifting? Stuck in gear (limp mode)? Won’t go into reverse or forward? These are all trany fault code symptoms that must […]

If you know the trany code basics…you are half way there!
1.) When you encounter a trany fault code after scanning your code, don’t go running to a garage like most people do. Instead, gather all your symptoms like: is the vehicle in LIMP MODE? A limp mode is when the trany is stuck in 2nd […]

What are transmission (trany) OBD2 codes?
One of the most dreaded OBD2 code many regular vehicle owners is a transmission fault code. (trany code is known to cause your vehicle to be stuck in limp mode or stay in lower gear only). Once it comes out of the dash panel, the normal reaction is to take […]

Hello Folks!
Glad to be back again after so many months of being too busy with my other jobs and responsibilities. Beginning today, I will start giving you some tips and tidbits so you can fix your vehicle on your own. Don’t be shy to give me a comment or question if you have any problem. […]