slow acceleration on my sc400 any ideas?
08-08-05, 07:32 PM
#1
Driver School Candidate
Thread Starter
slow acceleration on my sc400 any ideas?
i just bought a 93 sc400. it has a very slow accerlation problem. it still gets up speed, but it takes a while...the car and engine runs smooth, no noises, rattling or anything... The car has two aftermarket exhuast, and both catalytic coverters are hollowed out..( i have some original cats too, but they mite be clogged...thats the reason he had them hollowed out. i think... )...Im thinkin that it could just be there's no back pressure cuz of the exhaust system...but if anyone else has another explanation, please help. The engine light is on, and sometimes smoke comes out of the exhaust...i can smell the fuel too..The car just had a recent tune-up so, i really cant think of anything else that could be wrong. im new to lexus's, so please help. Thanks.
08-12-05, 07:19 AM
#7
Pole Position
Join Date: May 2004
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ok childern listen here!!!! number one my frinde your not pushing the pedal hard enuff, lol my babie still get side ways off the line even tho i took off the after market exhact, lol on the real tip tho. i advise you to go to lexus an have a complete diagnostic done on your car, its only like 80 bucks, because your problrm could be anything from bad sprak plug wires, distributers, plugs or injectors, so just spend the cash an find out 
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08-12-05, 07:39 AM
#8
Zombie Slayer
Originally Posted by hiephopp
its sorta blue
Blue smoke is indicative of oil. Possibly blow-by. Start by pressure checking your cylinders. One possibility is that the piston rings are bad. This would reduce cylinder pressure and reduce power.
MySc, I'm calling BS. I can't think of 1 SC400, stock, that can get sideways off the line!
08-12-05, 08:37 AM
#9
Lead Lap
Originally Posted by mkorsu
Blue smoke is indicative of oil. Possibly blow-by. Start by pressure checking your cylinders. One possibility is that the piston rings are bad. This would reduce cylinder pressure and reduce power.
MySc, I'm calling BS. I can't think of 1 SC400, stock, that can get sideways off the line!
MySc, I'm calling BS. I can't think of 1 SC400, stock, that can get sideways off the line!
08-12-05, 08:51 AM
#10
Lexus Champion
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Originally Posted by mkorsu
Blue smoke is indicative of oil. Possibly blow-by. Start by pressure checking your cylinders. One possibility is that the piston rings are bad. This would reduce cylinder pressure and reduce power.
MySc, I'm calling BS. I can't think of 1 SC400, stock, that can get sideways off the line!
MySc, I'm calling BS. I can't think of 1 SC400, stock, that can get sideways off the line!
08-12-05, 09:09 AM
#11
Zombie Slayer
Originally Posted by Inabj2
I could make even.. a 70ish hp Toyota corrolla (ae85) go sideways if I put crappy enough tires... he needs to replace his tires.
He's saying it does it off the line, by mashing the pedal. Not gonna happen!
08-12-05, 08:28 PM
#13
Driver School Candidate
Thread Starter
the car is SLOW....compared to any car...it still gets up to speed, it just takes a while. slow *** acceleration...engine light is still on...im put the stock mufflers on, hopefully it would help
08-16-05, 01:53 PM
#14
Driver School Candidate
Thread Starter
i did it! haha..i fix the problem. one of the ignition coils were out...easy fix. car runs perfect now. hope this helps anyone with the same problem.
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gadjet (10-24-20)
03-03-11, 01:39 PM
#15
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hey im having the same issue how do i find out which coil pack is bad or even if i need one, it has like a whitish blue smoke out of the exhaust everytime i start it up, it takes forever to get up to 30-40 mph i can only go up a hill at like 20 mph, i replaced the spark plugs a new maf and its still running poorly i bought this car 3 weeks ago and the prev owner said bad air flow meter, and im smelling gas in the inside of the car, and exhaust in the inside of the car, n e info,