Over 1M Posts • 84K Topics • 9K Authors

P0401 :( - 6G Celicas Forums

Topic #74846 4 posts Started by b22ri22an
says insufficent egr flow when i checked the code... car runs the same as before the light came on and from what i have read there seems to be many different things that could actually cause this code to come up, any insight? egr passage ways are clear and the egr is fuctioning.
replaced the ecu about 4k miles ago, a shorted fuel injector killed the last ecu and after replacing the injectors it still was throwing a number 3 misfire and wasnt juicing the injector, replacing the ecu fixed that problem and while the mechanic had the car to replace the injectors he had my throttle intake and egr sonic cleaned since he had the intake off anyway. btw the sonic cleaning made a huge difference in terms of throttle response smile.gif you could litteraly eat soup out of my intake it was so clean smile.gif

is it possible i just have a sensor thats bad? anyone have this code pop up, and more importantly am i risking damaging my engine from excessive combustion temprature continuing to run it with the light on, i mean i litteraly feel no difference from before it turned on till now
its probably the egr temp sensor.

QUOTE"And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH1994 GT:V6 swap, 5speed E53 W/ LSD, All Power, now RED1995 ST:SOLD @273k miles, Auto, all power, CarPC, White1994 ST:Totaled, 5spd, all power, RedRIP 07/09/09 @ 241,8101994 Lexus LS400:This is my new DD
thanks for the reply that will be the first thing i check tomorow smile.gif
I had the same error on a 98 corolla and it turned out to be a bad vapor canistor, the one near the gas tank.

Me and a guitar