massive rpm dropping
You ever fix that batt. terminal? A weak battery or a bad connection will wreak havoc with your sensors, wrong voltage getting to them, crap signals going to PCM. All kinds of weird thingshappening as a result.
If not, replace those cables, might be your whole problem right there. You can get the cables with the molded ends at O'Reillys at a reasonable price, probably other places as well. Put them on clean posts with a little dielectric grease.
If not, replace those cables, might be your whole problem right there. You can get the cables with the molded ends at O'Reillys at a reasonable price, probably other places as well. Put them on clean posts with a little dielectric grease.
I'm still having the problem and I'm going to replace the terminals with brass tomorrow. Could the pcm or map sensor be the problem? i think im going to change the cam sensor this week.
Last edited by ww2fishing; Dec 4, 2013 at 01:41 AM.
Could be any of a number of things. If the engine runs good though, it probably isn't the cam sensor. It just controls injector timing.
How low do your RPM drop when you let off the gas?
How low do your RPM drop when you let off the gas?
A second or two; it drops and immediately picks up again. I just replaced both the top terminals and the map sensor and right now my trucks back to running good. I also looked at the last write up from a shop i went to and they had replaced the cam sensor.







