nq8s

Be sure not to touch anything past the threads of the new sensor the oil from your fingers can cause the new sensor to go bad.

It's not hard to take a part =) it's just a pain in the !Removed! ive done it before and the only problem i've had was getting the valve cover off (the head closest to the firewall) because the wire harness runs directly over it and it doesen't come off easy. As for head gasket it is still in question because the oil is not milky or a funky color and the coolant level has been just fine. Thank you,

car still down, was thinking the mass air flow sensor is broken? any input? Thanks,

For the front head yes, as for the back head it's quite difficult without removing the plenum because the back 3 injectors are under that mass. I was thinking about checking the front with a long screw driver, and if they were all good, swapping them with the ones in the back and then checking the ones in the front that were originally in the back. I will try that tomorrow morning I was too exhausted from my 8am class this morning to be fixing a car :chairshot: If one of the injectors were say, bad? my friend suggested a few taps with the back of a screw driver anyone have any other suggestions before I take everything off tomorrow? I appreciate all the replys guys! Aloha,

So a stuck injector would not be my problem? The coolant and oil are not milky and the car never overheated..

Thanks guys for the replys. Well, with the 1992 ES300's The 3 injectors are located under the intake manifold. The whole manifold along with the airbox, various vaccume lines, fuel lines, clips, and connectors must come off. I was hoping this is not the problem because it is a pain in the but, but as you suggested to do one at a time I am guessing that the bad injector is on the back head. I have to take everything off to get to the injectors and I can't start the car because the manifold is off. I will try taking the back 3 and switching them with the front 3 and go from there. I was hoping for another solution before it came down to this but this seems like my only hope for a fix! Side note: I would suggest to anyone with a 1992 ES to change the head cover gasket located closest to the firewall along with cam seals and the distributor o ring because the manifold is a pain to take off. If anyone has any other helpfull solutions before I do this please let me know! Aloha,

Thanks for the reply, however I double checked the gas in the tank and it smells like regular gas. My friend told me I would know by the smell if it was diesel or not because they smell really different, said it would smell like jet fuel and not the normal gasoline smell. Thanks,

I have a 1992 ES300 and the engine will start up but it will smoke a lot of white smoke once started then it will smoke a little less but still alot and putter out of the tailpipes it also has a very strong gas smell. The engine seems like it is missing or boggeling because it will idle at like normal for a few seconds once started then it slowly backs down to 650 or so like it is about to die. Before any of this happend the car was running fine and nothing was touched this happened suddenly one day and now my car is down I thought it may have been because the spark plugs or cylinders wern't firing and when I took the plugs that I just changed out in December they were black so I changed out the cap, rotor, wires, and spark plugs, it doesen't overheat, and the coolant seems to still be full not milky and the oil is not milky either its still to the mark. I changed all that, but it still runs with white smoke, a crappy idle, and with the smell of gas. My only conclusion could be because of the injectors under the manifold closest to the firewall, i'm thinking maybe 1 or 2 of them are stuck open and shooting too much gas?? Anyone have any suggestions or solutions? Aloha,