Hesitating sc400
#16
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OK, check this out
Unplugged my MAF sensor, drove to LA and back (from vegas) ran great, but you can smell it runs a little rich, and with the check engine light on, it negates the traction control which i like alot on this car.
So once back in vegas, I plug in my MAF sensor again, and it runs great now, no check engine light, no hesitation.
Maybe it just needed a little flogging to get the bats out of the cave!?
It's only been running good for a day, but the hesitation is completely gone, not even a little hesitation which is a first.
Also, another strange thing, this car previously felt like it had a driveline vibration at 35-40 mph and again at 85-95 mph which is now gone.
I'm still gonna replace the trans mount. Odd coincidence though.
I fear this is not the last you will hear from me about this.
Unplugged my MAF sensor, drove to LA and back (from vegas) ran great, but you can smell it runs a little rich, and with the check engine light on, it negates the traction control which i like alot on this car.
So once back in vegas, I plug in my MAF sensor again, and it runs great now, no check engine light, no hesitation.
Maybe it just needed a little flogging to get the bats out of the cave!?
It's only been running good for a day, but the hesitation is completely gone, not even a little hesitation which is a first.
Also, another strange thing, this car previously felt like it had a driveline vibration at 35-40 mph and again at 85-95 mph which is now gone.
I'm still gonna replace the trans mount. Odd coincidence though.
I fear this is not the last you will hear from me about this.
![Wink](https://www.clublexus.com/forums/images/smilies/wink.gif)
#17
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Finally got around to putting seafoam in my intake.
What a F'in difference! Hesitation is gone. Pulls much harder, better throttle response. Idles lower. Engine feels smoother
Ran in 1/3 a bottle into the PCV valve, let it sit for 15 min then restarted it, gunned it a little at first to get it running again. Ran for another 10min to get it all out.
Smoked up my whole parking lot like a dance club in ibiza.
Haven't put it in my oil or gas tank. Probably will put some in the crankcase tomorrow and let it idle for a little, then change the oil.
Wish i had done this before i started replacing sensors and ignition coils.
I wanna run it through my other cars now.
What a F'in difference! Hesitation is gone. Pulls much harder, better throttle response. Idles lower. Engine feels smoother
Ran in 1/3 a bottle into the PCV valve, let it sit for 15 min then restarted it, gunned it a little at first to get it running again. Ran for another 10min to get it all out.
Smoked up my whole parking lot like a dance club in ibiza.
Haven't put it in my oil or gas tank. Probably will put some in the crankcase tomorrow and let it idle for a little, then change the oil.
Wish i had done this before i started replacing sensors and ignition coils.
I wanna run it through my other cars now.
#18
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Started bogging like it was missing cylinder again
CEL came on throwing rich/lean codes
Checked all the o2 sensors, no probs, MAF OK, Checked flow from the cats, OK
Still bogging, no idea why
For four tanks of gas, put fuel injector cleaner in with my fills.
The bogging has been gone for a month now
Anyone else have this retardedness?
CEL came on throwing rich/lean codes
Checked all the o2 sensors, no probs, MAF OK, Checked flow from the cats, OK
Still bogging, no idea why
For four tanks of gas, put fuel injector cleaner in with my fills.
The bogging has been gone for a month now
Anyone else have this retardedness?
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MikeyB33
Performance & Maintenance
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06-02-18 04:05 PM
04, 92, acceleration, acting, disconnected, gas, good, hesistation, hesitating, hesitation, lexus, maf, runing, runs, sc300, sc400, seafoam