need help with my NA
im having a lot of issues with my Miata for the past few months and its just gotten worse. the car "will" not move nor will it keep and idle. it has a very bad power loss and runs extremely rich to the point of obnoxious backfire(guns shots).
ive recently replaced the ecu cause there was no continuity between the o2 and the ecu and several sensors, and the problem still occurs. I added the bg fuel treatment system to my car and it made the problem even worse to the point where I cant even keep the car at idle(hot or cold). when I was able to get to idle by having throttle pressed a small amount, it began to feel restricted and backfired really loud (like gun shots). to refresh the situation "my car has a really really bad stalling, power, and idle issue" the car runs really really rich. this is a complete list of everything replaced AFM O2 sensor 2 new injectors cause #3 and 4 were having a small leak TPS(and is adjusted to spec) fuel filter ECU coil pack spark plugs and wires fuel pressure regulator(its adjustable and when maxed out it still runs 28-30 psi with and without vacuum; this is on the return side) brand new alternator and battery set timing to oem spec I have no vacuum leaks(at least that able to be heard) I have spark I have fuel but low on pressure to spec on the return side again runs rich as hell but no black smoke while running or crank burns a quart of oil at least every 2-3k miles pistons looked fine on top besides some carbon build up(very small amount) no crank shaft wobble |
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