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acceleration problem
Thread Starter
Driver
Joined: May 2008
Posts: 117
Likes: 0
From: tx
acceleration problem
I had a major tune-up, three new cats put on, but the first two that were installed were smaller than the originals (the aftermarket cats are new copy cat brand lexus catalytic converter equilvalent oem number 18450-50010). The company i ordered the cats from is called euro parts direct. I don't know if the size has anything to do with it, but i've been dealing with this no power issue for three weeks now. Hurricane Ike has caused power outages in my area so fixing a car was hard to do. Anyhow, this car has been a pain in the @###. My wife and i are tired. The problem with the car is i have problems accelerating, especially up hills. I'm afraid to go to the dealership, because it may be too high. I've researched all through the cat forums to no avail. The mechanic said i was fine, the only problem was to go back to the muffler guy and completely weld the leak in front of the third cat. After that was done, everything seemed ok until i tried to accelerate. Don't know what's going on. Help please. 
Thread Starter
Driver
Joined: May 2008
Posts: 117
Likes: 0
From: tx
I just remembered, the last time i checked, at least where i live, a diag is about $118-$124 dollars. I can't recall a diag being $100 dollars. If anyone knows of a lexus dealership in the houston area that charges $100 dollars for a diag let me know please. Thanks
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NELOC Mod
Joined: Mar 2006
Posts: 5,201
Likes: 9
From: MD
Really sounds like the iginition coils are going bad, especially if the car isn't fast enough to get out of it's own way. I had this acceleration problem when mine went bad, but un my case, things went downhill REALLY fast. Replaced the coils, burned off some of the excess gas which was being dumped into the exhaust,,, no more problem.
Rookie
Joined: Mar 2008
Posts: 64
Likes: 0
From: texas
i have had the same problem you were having but it wasn't my ignition coils,wires,spark plugs,and distributors/rotors!!it was my ground wire to my altenator!it had corrosion(blue) on the wire! i had to change it out!!!if you go to the dealer,they will charge you for the wire harness(1000.00)!!i went to the junk yard for less!!!!!
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