Quote Originally Posted by osnap
1. Distributor - Since I've been having issues for some time, I figured this could theoretically be the cause. I wouldn't be surprised if the problem was electrical because it was so sudden.

2. MAP sensor - Because of an accident I had a number of months ago, my intake is pretty busted up, and is probably sucking in some relatively dirty air, so I wouldn't be terribly surprised if the MAP somehow got clogged.

3. Catalytic converter - Just seems like it might make sense that the cat might be clogged. Only problem is that it was so sudden, and its not like I was losing power over time. Maybe one of the plates inside somehow came loose? Its a relatively cheap cat but I just had it welded on at G&S roughly 6 months ago, so its pretty new.

4. Clutch? I have perfect pedal pressure and have no problems engaging the clutch or changing gears, but it just seemed like a possibility.

Honestly I'm pretty baffled as to what the hell is going on here... Can anybody give me some help? +reps if you're the type who cares about em... lol
only things i can think of at the current moment is to test the components u suspect.

1. dizzy try swapping it out with a known working 1
2. map sensor

Manifold pressure Voltage specifications*
5 in Hg (125 mm Hg) 2.5 Volts
10 in Hg (250 mm Hg) 2.0 Volts
15 in Hg (375 mm Hg) 1.5 Volts
20 in Hg (500 mm Hg) 1.0 Volts
25 in Hg (625 mm Hg) 0.5 Volts
* Measured at Engine Control Module (ECM) terminals D17 (+) and D21 (-).


best to test with a scanner easy and faster.

3. look at the cat and see if its getting red hot also the exhuast manifold.

4. dont think its the clutch.


ill think about it more in the morning when im fresh.

Quote Originally Posted by Mr. KiDD
check your timing belt when you down shifted it prob jumped a tooth. That would explan the low idle and loss in power
thats possible check into that also.