1991 4 runner back firing
Posted: Mon Mar 01, 2010 4:18 pm
well i have just got my self a 91 4 runner and i am having a problem with it back firing. it is all good if keep under 3000rmp but if reved higher and then when u back off to go for the next gear it back fires pretty bad.
the carbie had been rebuilt, has new pluges and leads, new fuel filter. i just redid the timing and set it to 0 with no vacume and then add the vacume line again and it went up to about 10.5 when the manual said it should be at 12, but i dont see that doing it. allso it has the 22r motor.
so if anyone could help out it would be great thanks
the carbie had been rebuilt, has new pluges and leads, new fuel filter. i just redid the timing and set it to 0 with no vacume and then add the vacume line again and it went up to about 10.5 when the manual said it should be at 12, but i dont see that doing it. allso it has the 22r motor.
so if anyone could help out it would be great thanks