HELP! Bad TPS?

After driving to work today with no troubles (and going through several large puddles of water) later in the day my car seemed to become possessed.

It seems to run and idle fine but try to rev it up or put it into gear it bucks jerks forward, immediately looses power and then immediately revs up again...over and over.

It does this with or without the transmission engaged.

I'm reading no codes and the check engine light is not on.

I'm thinking this could be a bad TPS. Anyone else agree?

Anyone have a spare one if that's the case? Autozone wants $200 for it.

Thanks!

Geometron

haha I did something similar with the metro I was driving. Went through a couple HUGE puddles and shortly afterward it started to have horrible acceleration. let it sit for a couple hours went back out and still same thing. So on the way home I keep flooring the gas hoping to maybe clear whatever might have got sucked into my engine out, and sure enough out of nowhere my engine goes back to normal acceleration. sorry I really didnt help ya out but I saw you did the same thing as me so I figured I'd share my story and the outcome of it.

Well hopefully it is as simple as that. I will try it tomorrow morning before work. It will have to sit overnight now. It was raining cats and dogs this morning and the roads were practically flooded.

Yeah I'm not saying yours will be fixed that easily, but its just a thought. I thought I was screwed since the car wasnt even mine!! it was my grandmothers :lol: but just kept putting the throttle to the floor and then it eventually kicked back to normal. maybe I got lucky or something. Also this was about a month and half ago and I just got the engine flushed last week for her so now it runs amazing. I would say like new actually.

take your distributor cap off and check it, you get to much water up on engine and some can get into cap and cause misfires

take your distributor cap off and check it, you get to much water up on engine and some can get into cap and cause misfires

Exactly! I washed my engine and had the same poor acceleration problem. Dried out the dizzy, and it was all good again.

Jai

Okay, there wasn't any obvious water in the distributor cap but there was evidence of electrical arching on the wires leading away from the distributor and the ignition coil on the firewall. The battery also looks as though it had been doused with water. Obviously a considerable amount of water got into the engine compartment. Are Metros supposed to have a splash shield covering the bottom of the engine compartment? If so, mine is missing.

Anyway, after replacing the cap, wires, rotor, and sparkplugs the car seems to be running fine.

Thanks for the help and suggestions everyone.

^Cool man I'm glad you got everything figured out and working well. :)