Throttle valve servo failure?

YIKES!

THANKS much for the fast reply!

I've had no electrical problems before, this was out of the blue. I bought the car with 64,000 miles on it and have only replaced the fuel pump.
I was sooooo hoping for an easy fix. I guess I could just throw parts at it or. Better yet, I guess i'll have to get to a repair shop. I'm due for the timing belt anyway.

Thanks again for your time any expertise!

THANKS, will do.

The local chevy dealer won't do the timing belt. The closest authorized saturn repair shop that will do the belt is about 50 mi away. I haven't checked with any local independent repair shops.

THANKS again!

Doug

Update ...

car started!!

i did a little more searching and came across a post that mentioned checking the controls B+ fuse underhood. i pulled it and there was a little corrosion, cleaned it and car started and i was able to pull codes.

6 codes read (in order) ....U2105, P1779, P1791, P0123, P0222, P0700

the scanner book has the P0xxx codes but not the P1xxx codes. it says the Uxxxx is a network comm code.

in a search i found this thread where someone had some similar codes,
https://www.2carpros.com/questions/saturn-l300-2001-saturn-l300-computer-error
the P1779, P1791 codes are explained.

should this be as easy as replacing appropriate sensors? and tcm? (fingers crossed)

thanks again for your help!!

doug

I cleared the codes and nothing came back immediately after running the car for a minute, so I will drive it a bit.

On a another note. My battery felt really weak, it's 1 yr old and has been strong, and was strong yesterday while cranking it, key or lights haven't been left on.

Just drove around the block a few times and no codes. I'll drive some more and see what happens.

Thanks.

Ok. I let the car set for about 30 min after the drive around the block and was going to go drive for a few miles. It wouldn't start again, same thing, the butterfly was clicking open/close again. Pulled the B+ fuse again and gave it the ole in/out in/out and it started. CEL light was on, 2 codes, the U2105 and the P0700.
Cleared the codes and drove for a few miles, cut the car off twice and it restarted, got home and checked codes, no codes.

What would be in the P0700 trans control sys malfunction?

Battery was strong again. But will get batt and alt checked.

Soooo. Maybe some more corrosion somewhere? Maybe clean some grounds? I read a post that mentioned checking the ecu's ground, (on the intake manifold, I think), where would that be?

Thanks

Me again.

Drove the car since last post, about 1k miles w/ no problems. A few weeks ago the intermittent start problem returned, pretty much same as before, throttle plate opening and closing rapidly, car would start after setting for a while. After searching the net, I replaced the crank position sensor, but the no start returned. Once after restart, trans shifted rough, clunking into gear, I got home and checked codes. Only codes this time and all the other times were, U2105 and P0700. After clearing codes, tranny shifted as normal.

These codes would only appear after a no start episode. I checked several times in between episodes and there were no codes.

Eventually, car refused to start even after sitting overnight. I've had it towed to a chevy dealer, so I can get my timing belt replaced at the same time. They are working on it now, but called earlier to say after "extra" diagnostics, the throttle body needed replacing. I guess i'll find out later today or tomorrow if that fixed it.

Wouldn't a bad throttle body throw a code?

I'll post back on the outcome, incase someone comes across this in a search, maybe it will help them.

Thanks again.

Update.

So this is where i'm at.
I got the car this saturday from the dealer. They replaced the throttle body. They said it would then start but not run. Yeah, I think they were throwing parts at it. They then, replaced the ecm, and the car runs, seemingly with no problems. I had asked them to do a the state required safety & emissions inspection while they had it, as mine is due. But with the new ecm, it has codes that fail the inspection. They say it needs to be driven to learn whatever it is that it learns. I drove it home, about 40 miles, next day went to try to get it inspected and it failed. And they confirmed the drive/learn thing.

Check engine light isn't on and I can not read any codes with my cheap scanner. So I guess I need to drive it more.

I noticed my a/c doesn't work now, on the fail notice I got from the inspection station, it says :
Secondary Air System. Not Available
and
A/C refrigerant. Not Available

will the a/c start working when the ecm resets (learns)?

Also on the fail notice.

Engine Misfire. Ready
Catalytic Converter Efficiency. Not Ready
Heated O2 Sensor. Ready
Fuel System Performance. Ready
Heated Catalyst. Not Ready
EGR Flow. Not Ready
Comprehensive Component. Ready
Evaporative Emissions Control System. Not Ready
O2 Sensors. Ready

the dealer hinted at a bad catalytic converter if the codes don't clear after being driven.

Thanks!