SC400 spitting, sputtering, engine shaking, no power
02-25-11, 05:29 PM
#31
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brad ive had a long standing issue with me engine cel---------when i turn the acc on of course all the lights fire up---and than all the lights turn off---except my engine light-------it stays on indefinitely---but when i start the car the enging light turns off-------------does this mean the ecu is acting up?please elbarate if you can thanks
02-25-11, 05:39 PM
#33
yes thats exactly what im describing---i dont believe all sc's do this --------my caqr does not throw codes and the dealer couldnt give me any answers either---the main thing is my car seems to be running fien but i still dont believe the light is supposed to stay on like that ---if i get any answers ill be sure to let you know
thanks man
thanks man
02-26-11, 04:06 PM
#35
1JZ Single SC400
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Just a another update....
All is well and good in the SC community in my garage finally.
I have done the following things to determine one or more problems. I have cleaned the MAF, replaced TPS, inspected both caps, rotor button, wires, and plugs, pulled the throttle body and recleaned again, did the Fuel ECU bypass, lastly replaced all of the driver side fuel rail injector seals and rubber orings. The final results was a purring smooth running SC again. I think it was a combiantion of a dirty IAC and throttle body and TPS out of adjustment. It eventually ran little high on the initial idle, but now in all gears is silky smooth. It runs well again. Idle is 750. It does still show DTC code 31, which is the right front speed sensor, this was causing the trac, Check Engine light, and the Trac/Off to be lit. I have ordered another one and will delete that problem. Thats why my trac never worked properly according to the PDF file and the symptoms.
Let everyone know, keep everything clean and if you have a BFI as I do, keep an eye on the filter even more. If that makes any sense.
Thanks for everyones help on this. I will help any out if needed, or experiencing the same problems.
All is well and good in the SC community in my garage finally.
I have done the following things to determine one or more problems. I have cleaned the MAF, replaced TPS, inspected both caps, rotor button, wires, and plugs, pulled the throttle body and recleaned again, did the Fuel ECU bypass, lastly replaced all of the driver side fuel rail injector seals and rubber orings. The final results was a purring smooth running SC again. I think it was a combiantion of a dirty IAC and throttle body and TPS out of adjustment. It eventually ran little high on the initial idle, but now in all gears is silky smooth. It runs well again. Idle is 750. It does still show DTC code 31, which is the right front speed sensor, this was causing the trac, Check Engine light, and the Trac/Off to be lit. I have ordered another one and will delete that problem. Thats why my trac never worked properly according to the PDF file and the symptoms.
Let everyone know, keep everything clean and if you have a BFI as I do, keep an eye on the filter even more. If that makes any sense.
Thanks for everyones help on this. I will help any out if needed, or experiencing the same problems.
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