3S-FE engine surging - Toyota Nation Forum : Toyota Car and Truck Forums

CMD88 · 12-13-2003, 04:37 PM

Hey guys after some searching I did not find much useful information on the issue that I'm experiencing.
The subject title pretty much gives it away. Every once in a while the idle on my camry seems a bit high. When this happens and I'm driving the car surges from speeds 35-50 or so. It seems to run fine otherwise. While other times the idle is fine. It seems to come and go.
Could it be the TPS, IAC?
I checked around for vacuum leaks, cleaned the throttle body and IAC valve.
Anyone had any similar experiences or have any ideas.
Thanks

CMD88 · 12-14-2003, 07:34 PM

Anybody? Any ideas?

CMD88 · 12-16-2003, 11:32 AM

Could it be the cold start injector? or the cold start switch?
Anyone?

DIRTBIKEZ · 12-16-2003, 03:34 PM

Have you checked the distributor, wires or plugs?

CMD88 · 12-16-2003, 08:09 PM

The cap, rotor, plug, plug wires, air filter, and fuel filter are relatively new, they all are OEM. When the car is running right it still gets ~35-40 MPG, with 182K on the clock. It runs like a champ, it sometimes just seems a little off. I think that the high idle is related to the weird cold start issues that I've been experiencing and have posted in past threads. I think that its either the IAC valve, cold start injector, or cold start switch.
I need to do some testing.
If anyone else has any ideas or advice please help.
Thanks,
Chris