ordered more parts. more problems. grrrr
05-21-10, 12:54 PM
#31
i didnt say i dont have ignition coils. i said i dont have coil packs. a coil pack is a pack of multiple coils. the newer ls's have coil on plug much like i run on the 7mgte in my 84 supra with standalone and the 6 channel camry ignitor. trust me, i know how to check things having built a ms2 and engine harness, installed it myself, tuned it myself etc.., plus i have my A.S. in electronics and use to do level 2 support for the repair shops for philips/magnavox. i was the guy reading the diagrams telling them what toi check so they could fix the tv's. i know what im doing. ive also rebuilt dozens of engines, a few rear ends, made the adaptor plate to fit an lt1 t56 from a camaro to my 7mgte etc... i can weld also when needed. i took welding in hs and have a 120v wire feed mig for exhausts and stuff and then have a miller 320 a/b p 220 tig with 25ft water cooled torch, high freq built in, etc.. says 200amp output in a/c but its actually more like 300amp output. its an old transformer machine. huge but works like a champ.
05-21-10, 01:05 PM
#32
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its not a miss. if i press the gas easy i can take the car all the way up to redline in neutral and also have had the car up to ~95mph with 4 adults in the car, one of which weighed over 400lbs. plenty of load on the engine. its not a coil. the problem is the vta pin has 1.7v on it when the tps connector is unplugged and i know this is an issue as it is supposed to have 0-1v on the vta wire with the throttle closed at the ecu. because of the 1.7v on the wire it actually measures over 1v. as i recall ti was 1.35v. the ecu isnt measuring the correct voltage at the ecu therefore doesnt know the real throttle position. my theory is when i go over a throttle position that would read over 1.7v is when it bucks. i need a different ecu as im tired of dealing with an incompetent company. im sorry if i come off harsh but i am very frustrated with this car at the moment.
Last edited by williamb82; 05-21-10 at 01:09 PM.
07-27-10, 04:51 AM
#33
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well, i found a replacement ecu last week. bought it, and it arrived yesterday. put it in and the car runs perfect now. no engine codes at all, and i can floor it and it goes. no more bucking. now to contact ati for my refund.
07-27-10, 11:59 AM
#34
If so, imma punch you in the face. I'm glad your problem is solved. I did finally win a bud for a ecu on ebay. It will arrive tomorrow. If it does solve my problems, I will buy a new ECU from Lexus this fall. I dont want anymore problems. My car LS just crossed the 100k mark and I do plan on keeping her for at least 3 more years.
Last edited by Yotarip; 07-27-10 at 12:03 PM.
07-28-10, 04:48 AM
#35
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nope, didnt get it from ebay. the ones on ebay cost too much. got it from a junkyard in mass. found it on www.car-part.com. and i wouldnt waste the money on a new ecu. itll prolly cost $2k.
07-28-10, 01:47 PM
#36
Good news,
Got my ecu in today and my problems are solved.
I had the exact same symptoms as William and I even sent my old ecu to ATE and the problem persisted. There must be another bad circuit in these ecu's that has not been recognised by the "ecu repair " shops.
If new ecu's from LEXUS cost $1500 or less, I'm buying a new one.
Thanks for following up William!
Got my ecu in today and my problems are solved.
I had the exact same symptoms as William and I even sent my old ecu to ATE and the problem persisted. There must be another bad circuit in these ecu's that has not been recognised by the "ecu repair " shops.
If new ecu's from LEXUS cost $1500 or less, I'm buying a new one.
Thanks for following up William!
07-29-10, 04:55 AM
#37
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ate isnt a repair shop. they dont "repair" the ecu's. all they do is replace all the caps and hope it works. alot of supra guys do this first when an ecu "goes bad". sometimes it works, others no. its a crap shoot. the caps leak with age and change value. if they change enough, or enough of them change, it can cause running issues. ate charges $100+ to change a bunch of $0.20 caps and ship it back saying its fixed. mine has been done twice, still doesnt work. im trying to find my invoice right now so i can contact them for a refund.
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