Hey guys I have a 94 tracker 16valve that has raw fuel in the exhaust and oil. I replaced number 1 injector and fuel pressure regulator. Also did new plugs cap rotor and oil change. Problem still exits and in not sure where to go next. Fuel mileage is terrible. Any suggestions would be a major help.
Welcome to the forum. I suppose I might initially start with a compression test, as itís usually a good idea to verify engine timing before going further. And an inspection of the spark plugs would indicate if this is across all cylinders, or one thatís causing the problem. It would also be a good idea to check your fuel pressure - spec is 34-41 psi.
Was there some reason why out of the 4 injectors that you have, you replace #1?? And out of curiosity, is your check engine light on with the key on, and off once the engine starts?
'91 Tracker 8V, 1.6L, 5 sp, 4wd, 2dr, conv, CAMI, horribly rusty
'97 Suzuki Vitara 8v, parts car - worth its weight in gold.....
'61 NSU Quickly - 150mpg
I did a compression test which passed. I changed number 1 injector because with removal of plugs and cranking the engine that cylinder had the most vapor commimg out. That's also the cylinder which spark plug is most fouled. I know that I have spark. I just can't figure out why so much fuel would be coming out of the exhaust. A heavy smoke cloud when the engine revs. No check engine light. I tried to jump the harness to see if a code showed up but did not.
Use a NOID light, or a LED test light and check for trigger on the injectors, if you have a grounded trigger line with the light in parallel the test light will not flicker, in series the light will be constantly lite...
DONOT apply battery power to the injector circuit, costly damage may occur.
92 Ford Explorer, 450k
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