Clattie Posted April 13, 2023 Author Report Share Posted April 13, 2023 So I I've changed the ignition timing to -350 which is what seemed best on the opposite end of the stroke and it sounds like it wants to turn over now rather than backfiring. BUT... as I went to crank a third time to try and get it to start, I noticed I had 0 oil pressure. Could the backfire somehow of caused my sensor to be damaged in my oil sump? Engine all sounds normal and healthy when its cranking though. Quote Link to comment Share on other sites More sharing options...
DerekAE86 Posted April 13, 2023 Report Share Posted April 13, 2023 factory oil pressure sensor or 3-wire aftermarket one? If it's a 3-wire one I'd be checking if the sensor 5v and sensor ground are present and if the signal wire has continuity back to the ecu. You might have had a sensor reference problem all along which was causing your trigger issues too. Quote Link to comment Share on other sites More sharing options...
Clattie Posted April 13, 2023 Author Report Share Posted April 13, 2023 3 wire aftermarket. Right I'll give that a go, it's not moving from 0 what so ever but it was fine the other day. Maybe it was that causing problems. Quote Link to comment Share on other sites More sharing options...
Clattie Posted April 13, 2023 Author Report Share Posted April 13, 2023 Good Afternoon Fixed the pressure issue, one of the pins had gotten pushed further back in the ecu plug causing it not to connect. The next problem is starting, I altered my master fuel from 9ms to 6ms as I'm running 820cc Injectors over the standard 550cc injectors. The engine is firing but its very weak and doesn't want to get going. FYI all my sensors look spot on but the lambda is sat at 0, I'm not sure if this is normal but it expects it to change a little with the slight burn. Here's a video of what it sounds like - https://photos.app.goo.gl/FKyydToACpJBWUtG6 Quote Link to comment Share on other sites More sharing options...
Calvin Posted April 14, 2023 Report Share Posted April 14, 2023 Check your spark plugs. You may have drenched them in fuel after the master fuel change. Quote Link to comment Share on other sites More sharing options...
Clattie Posted April 14, 2023 Author Report Share Posted April 14, 2023 Literally just doing it now, I did notice all the spark plug Holes had water in (common on mr2's) had a slight bit of corrosion of the plugs themselves to so ive ordered some new ones. Im gunna check the spark on cylinder one after ive cleaned it all out. https://photos.app.goo.gl/4GcXH6jXp7HM1bEG8 Quote Link to comment Share on other sites More sharing options...
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