09-01-2001, 03:45 PM
I figured I would pick your brains out there before resolving to take the car to my mechanic.
During acceleration, any acceleration, my car hesitates continuously. When I'm maintaining a speed, no problems, but any throttle will make the car accelerate in a choppy fashion. It does accelerate but it certainly isn't smooth. I know I've lost quite a bit of power as well.
I'm posting to get any quick, look for this type answer. I may have to bite the bullet and take it in, but I thought I'd give the forum a try.
09-01-2001, 05:36 PM
09-04-2001, 08:24 AM
also check the wastegate spring that TAP likes to mess with. But that would be more noticable on boost. Plus, you may need a 3bar MAP sensor. With the increased boost form the chip it's good to have, could be the cause of your problem. TAP doesn't use the 3bar MAP sensor either. I don't agree with just doing a tighter wastegate spring, its the easy way out...
1. Pull the plug cover. Check torque of plugs. If they are over 30k miles old, replace them, Get the correct plug. Bosch P5DOR (I think that's the one, it is important to use the correct one...). $12 each through thepartsdepot.com
2. Make sure the rubber boots that connect to the plugs are OK. These do go bad and need to be replaced., They should be intact, the bottom lip should not be broken. $18 EACH through thepartsconnection.com
3. You may have a bad coil. If it is doing the missing/hesitating at idle, pull the fuel injector plugs one by one to see which one does NOT make a difference and make it run even worse.
4. If you can isolate which cylinder is the problem, do this: First, swap two plugs, see if that is the problem. Iif not, then locate the PowerStageOutput devices on the firewall (there are two. Swap them, see if the problem moves. If so, you have a bad PSO (about $340). If not, you may have a bad coilpack (about $140 each). Need to swap the bad cylinder coil with a good one to see if the problem moves. If so, replace the bad one. Swapping the coils MAY be beyond your abilities, requires cutting and splicing wires. If you aren't sure of what you are doing it, check all the other stuff yourself, then take it in.
I've been there, done that with all of the above.