Please Help!!!

scruffboy · 05-29-2007, 08:46 PM

I have seen this problem mentioned before by someone else on this forum, so I know I am not the only one to encounter it. I was changing my wires and plugs when I noticed the TPS was broken (the eliptical hole). I bought a new one and installed it, and got it to idle at 700 rpms. The problem is, when I attempt to drive it, the rpms go up to 4000, then drop down to idle speed, jerking me back and forth in the seat like a rag doll. I brought it to the mechanic, who was lined up to do some work for me anyway. He called me and said everything was ready and I could pick up the car. When I went to drive it away, it started doing the same thing, so I drove it right back to him. He is working on it now. What can possibly cause this? Can someone set me in the right direction.

Thanks,

Scruffboy

dannydavi · 05-29-2007, 08:57 PM

i had a problem similar where i got to 4k and it wouldnt accelerate anymore and it would just shift up, but i never got jerked around. and the only thing wrong with mine was that lil electrical connector that connects to the throttle body... i accidently left it off, connected it up and everything working great. but your problem seems different... i dunno man.

scruffboy · 05-29-2007, 10:30 PM

When the TPS broke, a little piece got jammed in there and was messin with everything. The mechanic had fixed in about an hour or so, no x-tra charge. Thanks for answering tho, I think everyone went away this weekend.

Scruff

05-29-2007, 08:46 PM	#1
scruffboy walbro fp Join Date: Sep 2005 Location: Kearny, New Jersey, USA Posts: 427	Please Help!!! I have seen this problem mentioned before by someone else on this forum, so I know I am not the only one to encounter it. I was changing my wires and plugs when I noticed the TPS was broken (the eliptical hole). I bought a new one and installed it, and got it to idle at 700 rpms. The problem is, when I attempt to drive it, the rpms go up to 4000, then drop down to idle speed, jerking me back and forth in the seat like a rag doll. I brought it to the mechanic, who was lined up to do some work for me anyway. He called me and said everything was ready and I could pick up the car. When I went to drive it away, it started doing the same thing, so I drove it right back to him. He is working on it now. What can possibly cause this? Can someone set me in the right direction. Thanks, Scruffboy __________________ The only way they'll get my Supra is to pry my cold, dead fingers from the steering wheel. 89 N/A Supra, 5 speed, TEMS, Moon Roof, all stock, Black with beautiful Burgundy interior, lots of new parts, oil changed every 3 months like clockwork.

05-29-2007, 08:57 PM	#2
dannydavi 12psi boost Join Date: Mar 2007 Location: Sacramento, Ca Posts: 373	i had a problem similar where i got to 4k and it wouldnt accelerate anymore and it would just shift up, but i never got jerked around. and the only thing wrong with mine was that lil electrical connector that connects to the throttle body... i accidently left it off, connected it up and everything working great. but your problem seems different... i dunno man. __________________ '86.5 Supra - A/T - N/A - JDM Useful Sites: ToyoDIY.com ToyotaPart.com MKIIITSRM

05-29-2007, 10:30 PM	#3
scruffboy walbro fp Join Date: Sep 2005 Location: Kearny, New Jersey, USA Posts: 427	Pretty Close When the TPS broke, a little piece got jammed in there and was messin with everything. The mechanic had fixed in about an hour or so, no x-tra charge. Thanks for answering tho, I think everyone went away this weekend. Scruff __________________ The only way they'll get my Supra is to pry my cold, dead fingers from the steering wheel. 89 N/A Supra, 5 speed, TEMS, Moon Roof, all stock, Black with beautiful Burgundy interior, lots of new parts, oil changed every 3 months like clockwork.