Stussy

Here is the scenario. I have a 1987 RX7 S4 Tii. Yesterday, the only issue is that it would drop to around 700 rpm, then run on one rotor. Today is a different story, after the short drive to warm it up, it sounded very rough at around 1100 rpm, and would start wanting to run on one rotor then. Since it was warm I adjusted the tps with the ohm meter method. It worked well, tps seems good. After testing then, it has a idle surge where the rpms will bounce at 1100-1400, and die below that value. I took it for another drive, and it ran well on rpms 3k and up. The tps was at .7 ohms, so I adjusted it back to 1k, the surge is now gone, but still the issue around 1100. I tried messing with the bac valve, but it didn't seem to do anything. While idling, the afr is crazy lean, at 16-18.

• engine compression high 90s, engine only has 100 miles on it, still being broken in
• Tps is adjusted properly now
• Bac solenoid clicked when exposed to 12v
• Should I adjust the idle air screw after adjusting the tps?
• Should I re look at timing after adjusting tps
• I have an apexi neo piggyback, there is currently no fuel correction happening with it, flap set to 5-5
• Sprayed brake cleaner around, idk if it showed a vac leak, might get a smoke machine and try that

any thoughts are helpfull!

Stussy

Turns out my injectors were not seated properly. Used a vac smoke detector and filled the intake manifold, came out from the seal.