On my '99 Camaro I drove it about a month ago and was running 70 mph down the highway. Then out of no where my car dies, but starts back up when I crank it. It runs fine until I put a little gas to it, then it dies. If I Give it some gas it runs fine, but once I let off and push the gas again it dies. Well now it started surging while I drive down the road. Picks up around 400 to 500 R.P.M. then drops back to normal. Is my fuel pump going out?

 

usually surging can be blamed on a bad TPS, but it shouldn't make the car die like that on the highway. A bad TPS will also make the car surge in its idle, adjust it before you replace it, if you decide to

 

Ok maybe I'm blind, but I can't find my TPS. Where is it and what does it look like?

 

Its on the side of the throttle body, looks something like this:

http://img.alibaba.com/photo/2054001...NDARD_VEMO.jpg

or this:

http://img.alibaba.com/photo/2053970...YOTA_VOLVO.jpg

 

I still dont see one. The only thing on my intake is the MAF sensor, then on the side of it is a plug with about eight wires on it. It is riveted on to the throttle body. Is that it?

 

got any pics? I'm not familiar with these newer Gen III V6's.....

It should be right on the side of your throttle body on the very front passenger side, its connected to the throttle plate inside the throttle body.

 

Actually, I think it's on the driver's side. He doesn't have a Gen III 60*... his is a 90* based on a 305. Either way, it will have 3 wires running into it. The thing you are looking for is right at the front of the plenum, right where it says "3800 Series II", similar to the "Tuned Port Injection" placard on the 3rd Gen TPI engines.

It could be a MAF/MAP problem or some sort of massive vacuum leak. I would try to hook it to a scanner and see if you are getting any Current P(owertrain) codes (also look at the history codes). It seems to me that the PCM should be setting the Check Engine light. If it does, when the engine dies, it should be saving a "snapshot" of recorded data from when the error(s) occured. You'll need a scantool to access this.

 

Oops, yeah i forgot the 3800 is a 90* while the 3100 is a 60*, I'm trying to help, but I just dont know these engines like I do the Gen II 60*'s....lol

 

I'm about to post some pics. of my throttle body for your viewing pleasure. I did find a vacuum line off located by the back, drivers side of the intake plenum. It was connected to what looks like an E.G.R. valve, but it's located at the end of the fuel lines. I'll try to get a pic. of this as well, but it's a little hard to see. I'm about to go drive the car and see if this fixed the problem.

 

Ok the vacuum line was not connected to the fuel pressure regulator. Once I put this back on my engine runs like it should now. Thanks for all the help and here are some pics. for ya............

 

Maverick H1L has a point and it could be MAF/MAP problem.

But I"m pretty sure the problem your having is your fuel pump going.
From the stuff thats going on with the camaro it really does sound like a fuel pump going out.

I might be wrong so if it is the MAF/MAP then even better but keep us in the loop.



Hey Maverick...not saying your wrong. .I'm hoping your right because I'm going throu the same problem....

 

He's already fixed the problem... His fuel pressure was too high because the vac line to his FPR or something was disconnected...

 

Son of B..... damit thats what happens when you try to speed read lol...


Sorry man LOL.....
Sorry peoples LOL....

 

eh, **** happens... Like the snow I'm about to go out and clear from the driveway.