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Showing results for tags 'mass air sensor'.
So I bought a 77 (made in 76) 280z that was dead and stuck the engine/transmission from a 79 280zx 2+2 into it, the thing is, its always had an issue where it would idle really low at a rest,more so when warm, around 500, when i have the idle set to around 1600 when hot just to combat this problem. Anyway i figure out it was most likely the MAF so i ripped it out, cleaned it up, put it back in, and it was working almost perfect for awhile, but now it seems to have died completely. The point of this post is; it never did really work quite right, and my zx engine is slightly different from that
I currently own a 1978 280z. I recently replaced the fuel pump, fuel filter, and cleaned out all the lines and gas tank due to it running extremely lean reaching 4k RPM's. Now as i try to push the car harder into the 5k RPM range it starts to lose power and the RPM's drop then kick up then drop again. This has also been happening in any RPM range when ever i floor it. My thought is the new fuel pump is sending too much fuel(or not enough) and there isn't enough air getting into the engine because it has a stock air-box which i cleaned out in hopes of fixing something but I had no luck. Ill