i had this problem when i first bought my 94 mx3. i was messin around with it alittle bit and my problem was that it wasnt getting enough air. i replaced the air filter and there was some hole in the intake tube. so i taped them up and the problem stopped. so you can give that a try. cheap and easy.
You may have a timing problem , with fuel flow or a spark plug that is not firing ; you'll need a mechanic to run diagnostic tests to determine the problem(s) .
A computer diagnostic test will show a timing belt problem for a 1999 Mazda 626. If there is a problem with the belt, diagnostics will determine if it needs to be repaired or replaced.
I had a similar problem with my 1994 B4000. I took it to the dealership where they ran a diagnostic but found nothing wrong. After many inquiries, I replaced the mass air flow sensor and this solved the problem.
You have to clear the computer of the malfunction; Use the same diagnostic tool that read the code to clear the light.
Reading diagnostic codes is easy. The driver plugs the reader/scanner into the diagnostic port of the vehicle, and the scanner/reader will give a code if there is a problem, and tell them the type of problem.
change the resistor if the problem continues try the fan with cables directly to battery and you will see for sure that the fan need to be replaced.
I had this problem and took my 1990 cavalier to a shop. Nothing came up on diagnostic so they decided my ignition module and coil packs needed to be replaced. This fixed my problem but costed me around 450.00!
Problem identification and analysis is a participatory diagnostic methodology that involves focused research on discovering problems and understanding the relationship between the cause and effect of an identified problem. Accurate problem identification relies on gathering and analyzing data systematically at both the individual and environmental levels. Then the analysis continues that tries to determine the next step.
Run a computer diagnostic test to figure out WHY it's on. Why replace a converter when the problem could be an oxygen sensor?
Diagnostic tools are used to check your car where has the problem and how to do.There are many kinds of diagnostic tools,you can consult,maybe it can help you:http://www.obd2tool.com/
O2S problem
The mechanic ran every diagnostic test, but still could not locate the source of the problem.