1993 Honda accord is running rough and blowing white smoke that smells like gas out tailpipe and is only getting about 10-12 miles per gallon.
I have a 1993 Honda Accord EX. It has 225, 000 miles on the body and the engine was replaced 30,000 mils ago, The engine had 205,000 miles on it. I had to replace the transmission, TCM( transmission computer.)
The car is running rough and I have changed all 4 spark plugs ( ngk iridium spark plugs), fuel filter, wires, distributor, cap, rotor, coil, fuel pressure regulator, all 4 injectors. I cleaned the Idle air control valve , cleaned and tightened the idle control valve.
I have done a compression test and cylinder 1 is at 220 and 2,3 and 4 are at 180 compression. Cylinder 1 spits out gas while doing the compression test. There is white smoke coming out of the tail pipe and it has a strong smell of gas. I have checked the oil and antifreeze and everything is where it should be, nothing is mixing.
The vehicle still smokes with a strong gas smell at the exhaust. I didn't know what to do from here. I will lose too much money if I junk it and I need it for my daughter for when she begins to drive later this year, so I want to fix it as long as I have some direction to fix it,
Accord EX
Well I'd say check the fuel injectors. It could be their worn and putting too much gas in The engine has good enough compression
It did that with the old and new injectors.
I just replaced all 4 injectors
Black smoke = overly rich
Blue smoke = burning oil
White smoke = blown head gasket
It did that with the old and new injectors.
I just replaced all 4 injectors. So what do I look at now?
You're dealing with a 30-year-old car. Test for a blown head gasket and test compression.
@chucktobias - Beat ya by 14 minutes - HA! Regards - Doc
Just another vote for a head gasket test - I missed that he already had compression readings but those sound too high, could be carbon buildup. 😉