'92 SC400...only runs good when it's cold..need help!!!
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'92 SC400...only runs good when it's cold..need help!!!
My sc400...tends to only run good and work properly when it's cold..my guess is that it needs some electrical repairing but i'm not sure. I driven for a long time the car tends to start jerking...it also won't go over 70 so i need to figure out wats wrong..any suggestions???
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replacing my ecu helped that out. It felt sluggish when warmed up, but felt very fast and sporty when the engine was cold and heating up.
On those cold mornings does white smoke pour out of your exhaust? Does it smell like fuel? If it is, then I recommend swapping out ecu's to see if it helps out.
But this wouldn't explain why your car cant go past 70?
On those cold mornings does white smoke pour out of your exhaust? Does it smell like fuel? If it is, then I recommend swapping out ecu's to see if it helps out.
But this wouldn't explain why your car cant go past 70?
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I can smell fuel on real cold mornings, like 30 and below, when I first crank mine up, but dissispates after about a minute. Does this mean my ECU is bad, or going bad? Know you all have me curious. I dont smell it when its parked in my garage on cold mornings, just when its been sitting outside the whole night.
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I can smell fuel on real cold mornings, like 30 and below, when I first crank mine up, but dissispates after about a minute. Does this mean my ECU is bad, or going bad? Know you all have me curious. I dont smell it when its parked in my garage on cold mornings, just when its been sitting outside the whole night.
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I can smell fuel on real cold mornings, like 30 and below, when I first crank mine up, but dissispates after about a minute. Does this mean my ECU is bad, or going bad? Know you all have me curious. I dont smell it when its parked in my garage on cold mornings, just when its been sitting outside the whole night.
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My sc400...tends to only run good and work properly when it's cold..my guess is that it needs some electrical repairing but i'm not sure. I driven for a long time the car tends to start jerking...it also won't go over 70 so i need to figure out wats wrong..any suggestions???
-on that note do you have a ck eng light on? Is it flashing? Do you smell gas even when the car is warmed up? Feel free to pm me if you can not find any better answers.
#12
i have the same prob and havent had any help..but i will tell u what i have tried
i have tried the
12v mod--no help
cleanin the iacv--not much help
cleaned injectors --a tad bit
also took off the intake and fully cleaned the intake helped at first but went back to bein slugish
did the fuel tune up wires plugs and cap and rotor --seem to help a little
also relocated the driver harness--still the same
im in the process of still goin thru alot more clean up to see what the prob is
i have tried the
12v mod--no help
cleanin the iacv--not much help
cleaned injectors --a tad bit
also took off the intake and fully cleaned the intake helped at first but went back to bein slugish
did the fuel tune up wires plugs and cap and rotor --seem to help a little
also relocated the driver harness--still the same
im in the process of still goin thru alot more clean up to see what the prob is
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thanks 2 everyone!!
all of ur inputs has helped me alot...i've been told numerous times that it can be the sensors...i will hit up an autozone manana for the diagnostic test, since its free..then let u guys kno the latest..again much thanks bcuz i was in the brink of given up on my baby...i really wanna fix her up..juz need to kno where to start