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Showing results for tags 'lean pop'.
Hi I'm new to the site so i hope I am posting this in the right spot. I have a 1977 Datsun 280z that pops back thru the intake when you give it gas!!! I replaced all the injectors and gave it fresh tune up, but still runs like crap the fuel presure is 20-39 psi. I jumped the thermotime switch and it stopped popping thru the intake but makes it run to rich- black smoke DOES Anyone have any ideas? Thanks Steven
Alrighty lets get to it. car: 10/1972 240z with an L24 and an E88. completely stock engine. I have recently been able to get my car to move under its own power, but it seems that problems keep coming about. Yesterday while taking her out for another test drive she drove fine for about 1/8th of a mile then she started to sputter, i gunned it and once i got past 3kish rpms the car pulled like I was hoping this car would be capable of. but as i started a to do some normal driving, 2k rpm cruising and 3krpm shifting the car started to sputter, lean pop, and backfire again and again. brought her