One injector (#2) is not working properly causing misfires. This can be because the injector has failed, the ignition control model driver for that injector has failed, or there is a wiring problem between the module and the injector. Most frequently, it's the injector and you could start by replacing it, but it's complicated and if it were me, I'd take it to a GM dealer for diagnosis and repair.
SOURCE: 97 Nisson pickup smoking white smoke (a lot)
this indicates that you have a blown head gasket. you may not have water in the oil pan but it's because the water is not leaking into your oil galleys,but instead leaking into the cylinders and being burned hence the white smoke.. there is a big myth that you will get water in the oil with a blown head gasket . there might be trace amounts but the only time you get water in the oil is if the heads crack or the block cracks othere wise most times it's just getting burnt in the cylinders,hence the great amount of white smoke. please rate this thanks.
SOURCE: 96 gmc suburban 2500 blowing white smoke, bad gas mileage
white smoke indicates a blown head gasket check for milky looking oil on the dipstick
SOURCE: 1990 300zx non-turbo coupe 5 speed
Old post but I would like to state that white smoke and white vapor are two different thing and blue smoke is sometimes so ligh it looks white but does act like heavy smoke. Evanescence of water vapor looks a lot like smoke but dissipates a lot quicker but in mass quantities can look like smoke (yes..I been dying to use that word ever since I heard of the band Evanescence lol). Transmission fluid can be sucked into the engine via a bad shift modulator both that has no bearing here (just FYI). In either case you would be fouling out spark plugs due to oil or water saturation and causing unburned fuel to be expelled.
SOURCE: car is blowing white smoke from exhaust when i step on gas
The most likely cause is a blown head gasket,but it could also be a warped head,was the motor overheated prior to the problem starting? The white smoke is steam,check the underside of the oil fill cap and dipstick for a grayish brown residue,check the coolant for a low level and oil conatamination,either of these conditions verify that a head isn't fully sealed.Unless your moderately skilled mechanically this a job to be done by a shop.A good shop will perform a leakdown test to verify this.
SOURCE: P0202 AND P0302 ERROR CODES. CHANGED SPARK PLUGS
P0202 is cylinder 2 injector circuit malfunction. And P0302 is cylinder 2 misfire.
The # 2 fuel injector is the problem not the spark plug.
Check to make sure the electrical connector is still plugged in to the injector. The injector is right below the the #2 plug. If you have an electrical tester check the Ohms between the two contacts on the injector. It should be around 12.
Another way to check your injector before you spend the money is to switch two of them. Just make sure that you get yourself a manual. It will guide you through the injector removal better then Something like this.
If it's any consolation I have a similar problem P0202. Unfortunately I have no compression in # 2 cylinder which means a possible blow head gasket. I'll be happy to trade you.
Good luck
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