Powertrain Control Module (PCM). The PCM uses many engine parameters to determine the percentage of fluid life remaining for the engine oil and transaxle fluid.
1991 Mazda 626 hold light flashing and car will not move forward or backward. Is it the PCM and where is it's location ???
I saw some guys on tradingpost that have 191 Mazda 626, maybe you can ask them regarding this, they can help you how to fix this, just browse by local area, so that you can find someone with 1991 Mazda 626 on your local area, It'll be easier for you to fix your car
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Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them