Question:
I have this P0400 EGR malfunction on my 1999 Nissan Maxima and reading ATS past newsletters, I have tested the egr valve and checked the integrity of the vacuum hoses and egr passages. However, after resetting the code, it came back after 1 week of driving. How do you fix this code? Is it possible […]

Question:
My windshield wiper motor will not stop even when the fuse for it was removed. I also tried replacing the windshield motor but the problem persisted. When scanned, no codes were found. Suggestions?
ATS Advisor:
Since you have already replaced for the wiper motor and the problem was not solved, have you checked the ground wires to […]

Question:
My Honda Civic quit on me the other day while I was going to work. After having it towed to my house and scanned for codes, I could not get any code. Testing for spark, there is spark and I can smell fuel. Reading ATS lessons, it is mentioned that the main relay is the […]

Question:
This Ford Escort would hesitate when running at highway speeds as if the engine is running out of gas. When this happens, the engine would also stall and finally quit. It will re-start but it has no power. She had the IAC (Idle Control) valve replaced but the problem remains and she asked for my […]

Question:
My car quit on me yesterday and following ATS course, I found it has no spark. As per your lesson, this problem is caused by crank sensor and ignition module. I first replaced the crank sensor and found still no spark. Went and got a new ignition module and same thing happened. But after spending […]

Question:
The last few days, I am getting poor acceleration on this engine. When I scanned the codes, I got code 44 -lean exhaust. I have done a quick tune up consisting of spark plugs and wires including the fuel filter. I also changed the oxygen sensor and all of these did not seem to help. […]

Question:
My daughters car is stalling at stop lights and if she waited for 15 minutes, it would start again. I changed the spark plugs and fuel filter and the stalling still happens. I scanned for codes and there is none. How do I fix this?
ATS Adviser:
If you have to wait for 15 minutes before it […]

Question:
This 1993 Dodge minivan has poor power accompanied by hesitation on acceleration and stalling on stop signs. When scanned, I have code 41. I have checked the engine for mechanical condition and seem OK. Using your ecm test, I found the engine acting up when the ecm is tapped with a rubber mallet. I decided […]

For some of you, who owns a GM vehicle and getting the check engine light in your dash, please read carefully below. (For GM vehicles made before 1995 that has a distributor type ignition and has code 42-EST circuit failure and has the following symptoms:
Stalling at stop signs
No start but if you wait up to […]