mattygood

Only wen o first take off it a lottle rough bit a npmal speeds its fine

The car was running like that before the tune up. All plugs wires are rite. Once the car warms the rmps idle little rough @ 750 and its slow to take off idk it started after i feplace the fuel filter i wuz thinking a clogged fuel injector...?

I changed my fuel filyer in my 1991 ls400 now the car runs rough at idle drops to abou 750 rpms at idle the when taking of slow until I hit second. Iy seemed to mis firing I did full tune up plugs wire caps routors colant tempetire sensor. I'm think a cloged fuel injector or even though fuel filter was replace last an is when the problem started any ideas would be great thanks.....

I broke my timing belt on my 91 ls400 and I'm trying to figure out where the timing marks are and how to to my engine any ideas?