Finally something different in my Suzuki Cara's odd engine behavior. DOHC F6A engine troubleshooting

[@taire515]

The brrrrrrr instantly made me think missfire, now this could be a lot of things (think what makes the spark not transfers it, ie pickup, module and or coil) but from seeing the video with you changing fuel pump and seeing the sh*t in the tank, pulling the injectors and getting them cleaned and flowed wouldn't be a bad suggestion regardless.

[@AnythingWheeled]

Yea I just pulled the injectors and stuff out and sent it off I think I may have figured it out. Waiting to get my stuff back to confirm

[@evilthorne]

I take it you checked the gap and everything with plugs and ignition? Boost can blow a weak spark out.

[@AnythingWheeled]

This is probably 3 or 4 videos in of me throwing parts at the car going through everything that possibly could have been wrong from the easier to harder things. I think I'm on to something, confirming on the next video of these shenanigans

[@curtklze7312]

maybe ignition misfire/cut due to bad cam sensor in distributor? these engines dont have a crank sensor, they only have a cam sensor/ignition pickup in the distributor, maybe there is an issue with it that presents differently when it gets warm or based on vibrations. cracks in circuitry can do this as it will make contact and work until a certain frequency or if it gets to a certain temp then the circuit will open and the connection is lost. could be in the pickup itself not just the wiring. you could try scoping the wire for the cam sensor/ distributor pickup and see if it brakes down at rpm cut. also ignition coil may cause this issue, try scoping the coil circuit and see what happens when it cuts,

[@AnythingWheeled]

I was supposed to do the tooth counter thing with the tunerstudio logging but I took some stuff apart and can't do it yet. I may have found it but need to get the parts back before I try and confirm..

[@spencerboucher21]

Have you checked the resistance of the fuel pump wiring?

[@AnythingWheeled]

I have not, I can probably do that real quick

[@tbasmwmc]

Take your air filter out and see if it acts differently? Reasoning- if it gets better, it's an air problem. If it gets worse, it's a fuel problem.

[@AnythingWheeled]

I ran it straight from the throttle body to atmosphere, it ran worse

[@dadeyeyam]

dont lie, you dropped the camera so we didnt see you driving without your seatbelt! ;)

[@AnythingWheeled]

Seatbelts... Stop signs... Speed limits... What's that?

[@frigglebiscuit7484]

not valve float, valve float sounds like a god awful spitting and popping. it doesnt sound like ignition breakup either, runs to smooth, even when it hits the wall. im gonna guess loss of fuel pressure or injector firing.

[@AnythingWheeled]

I also understand that valve float doesn't move around by swapping ECUs that have different tunes, Correct?