Karcastic
New Member
- Joined
- Apr 14, 2014
- Messages
- 24
- Reaction score
- 0
- Points
- 1
- Vehicle Year
- 1998
- Make / Model
- Mazda
- Transmission
- Automatic
Hello everyone,
I have a question about replacing my 98 mazda b4000 PCM. I have a spare from another truck (exact same model) I can use but does anyone know if it will work without any modifications?
Back story:
My truck died abruptly while driving and just rebuilt top half, custom 97 converted to 98 exhaust system. Exhaust manifold to y needs more tightening (f ing with) and leaked enough for a constant code ever since the rebuild (1 year ago). I was hoping it just maxed out trim ratios for so long that it refused to start, but I tried to scan it and I could not establish communication with the PCM (F). It cranks great, batts good, CEL is on, disconnected batt for an 1hr and still no start. I did notice 1 sensor wire was shorted from some wicked lubricant from the 80’s I sprayed (in a pinch) to free up the throttle air intake spring assembly. I thought it was an injector plug but it had two leads, maybe it was the temp sensor.. I’ll have to check again. Anyways, maybe that wrecked the computer, it might still be shorted too.. I’ll definately clean that up before replacing the pcm. Any input is appreciated, thanks
Karcastic
I have a question about replacing my 98 mazda b4000 PCM. I have a spare from another truck (exact same model) I can use but does anyone know if it will work without any modifications?
Back story:
My truck died abruptly while driving and just rebuilt top half, custom 97 converted to 98 exhaust system. Exhaust manifold to y needs more tightening (f ing with) and leaked enough for a constant code ever since the rebuild (1 year ago). I was hoping it just maxed out trim ratios for so long that it refused to start, but I tried to scan it and I could not establish communication with the PCM (F). It cranks great, batts good, CEL is on, disconnected batt for an 1hr and still no start. I did notice 1 sensor wire was shorted from some wicked lubricant from the 80’s I sprayed (in a pinch) to free up the throttle air intake spring assembly. I thought it was an injector plug but it had two leads, maybe it was the temp sensor.. I’ll have to check again. Anyways, maybe that wrecked the computer, it might still be shorted too.. I’ll definately clean that up before replacing the pcm. Any input is appreciated, thanks
Karcastic