hesitation

781supraturbo · 01-02-2008, 10:33 PM

sounds electrical

Supra2NR · 01-02-2008, 11:53 PM

i had the same problem b4
it only comes one when i run the car hard on the highway
and its goe away when i run the car harder,
i tried to save the code so many times but i jus couldnt get a reading
so i jus replaced my o2 sensor and it worked fine for me

Pretaco · 01-03-2008, 07:40 PM

O2 sensor problems will ususally happen constant at high speed/ high load conditions.
Intermittent hesitation could be the afm, or the tps, but should have a code pop up with te and e1 shorted. Could also be fuel pressure problem. Resistance checks might show all good unless you can test it when it is hesitating, which would be difficult at best.

gomezmk · 01-04-2008, 12:15 AM

Since its a intermittant problem, I would like to believe it something electrical. I removed the afm sensor from it's housing and noticed the sensing pole was covered in crap. I do have a K and N cone filter which I think is doing the damage since I have recharged it and probably over oilled the filter. I did resistance checks on the meter and found one measurement that was way off from spec and it was not the air temp sensing part. I'm going to shotgun it with the afm.

01-02-2008, 11:53 PM	#2
Supra2NR 1000whp postwhore Join Date: Apr 2006 Location: Chi-Town Posts: 1,643	i had the same problem b4 it only comes one when i run the car hard on the highway and its goe away when i run the car harder, i tried to save the code so many times but i jus couldnt get a reading so i jus replaced my o2 sensor and it worked fine for me __________________ http://www.myspace.com/supra_2nr Into Bikes now,, apparently the supra couldnt kill me, so my zx6 might lol

01-03-2008, 07:40 PM	#3
Pretaco 3" Exhaust Join Date: Dec 2007 Location: Glendale, AZ Posts: 126	O2 sensor problems will ususally happen constant at high speed/ high load conditions. Intermittent hesitation could be the afm, or the tps, but should have a code pop up with te and e1 shorted. Could also be fuel pressure problem. Resistance checks might show all good unless you can test it when it is hesitating, which would be difficult at best. __________________ '88 Supra Targa 5 speed w/ '90 7M-GTE Currently Running Good For Sale: Light blue body parts, Blue interior parts all from '90 supra targa turbo manual. Also for sale: R154 trans, brake pedal, master cylinder, booster, abs actuator, sensors, abs ecu, driveshaft, 3.90 lsd rear end, radiator, wiring, speedo cable, 8 saw blade wheels, '88 ecu, relays, cruise control actuator (bad cable), empty fuel tank, etc....

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
hesitation, high cold idle and poor gas mileage	sd88supra	MKIII Supra	14	02-06-2007 04:17 AM
bad hesitation on my new mkII	SolidStateS15	MKII Supra	10	09-26-2006 10:59 AM

01-02-2008, 10:33 PM	#1
781supraturbo Intake Join Date: Dec 2007 Location: lynn Posts: 37	sounds electrical

01-04-2008, 12:15 AM	#4
gomezmk 3" Exhaust Join Date: Jul 2006 Location: Santa Rosa, CA Posts: 70	Since its a intermittant problem, I would like to believe it something electrical. I removed the afm sensor from it's housing and noticed the sensing pole was covered in crap. I do have a K and N cone filter which I think is doing the damage since I have recharged it and probably over oilled the filter. I did resistance checks on the meter and found one measurement that was way off from spec and it was not the air temp sensing part. I'm going to shotgun it with the afm.