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Would a boost leak really cause it to cut spark at an rpm range though. The only leak is from the coupler to the turbo compressor and it keeps blowing the coupler off when I hit boost

AFR hits 10.2 when it cuts spark I don't know what ecu other than its got blue writing, it's for 7mgte and M/T Yes 550s are used with Lexus AFM No codes show up at all even when it cuts spark I've tried stock boost but not stock injectors I melted the plastic wrap on most of the wires to install...

I checked The TPS, CPS and Coil Packs per the TSRM already I can check the others too I'm Running Autolight 3055 double plat spark plugs with a .028 gap Fuel injectors are RC 550 I forgot to add I put new fuel in it and new battery

So, I'm about to give up on this supra because I've tried everything and it still cuts spark at 2500rpm. Details- New TPS New CPS 3 New Coil packs New ECU 2 New Knock sensors New HAC New Harness New spark plugs...

I'm beyond confused with this car now, I got a new CPS that I tested on a working 7m and saw it work, I also got a new igniter that I saw work, I tested compression again and its good, I checked for fuel and it's good for sure, but my coils only spark 2 wires, and all of the coils and wires are...

So we put everything back together my harness was destroyed and I fixed it and tell me why my intake that wasn't bolted up it just had the hose that goes from the fuel rail to the intake caught fire, like it literally caught fire

It was a brand new tester with a stainless steel line, I don't know how it didn't work

I did a leak down test and no air anywhere, I think maybe the tester broke or something because when I took off the compressor hose it blew back tons of air

I'll try the leak down test before I take the head off

No milky oil anywhere, and I have another head that I can use that's fully built so I'll just trade heads

The test uses real compression like it screws into the sparkplug hole then you crank the engine and it test the compression so I don't know how I could have gotten wrong on the last cylinder but not the other 5 and for the puffs of air. I think because I can hear it but it might also be the...

Yup I've got a big big problem, I checked compression and cylinder 1-5 was 147psi, number 6 though was 0 completely 0 and I checked 3 times just in case maybe I put the tester on wrong, took off the intake and oil pools in every runner

My cps is good. I've got spark on 4 wires (3-4,2-5), I thought it could have been the connector so I put a different one on that a knew worked and still no spark, so dead coil pack

Is there a way to lower the resistance or will I have to get a new cps?

I checked the resistance in the cps and NE read 444ohms G1 read 221 ohms and g2 read 220 ohms

So I looked on the inside of my cps and it's super corroded around the edges and the center wheel has rust on it, hopefully that's the problem

I've only checked with a timing light and the light has never came on, but I'm gonna check a different way today

On the tsrm and tewd it shows a different pin location on cps but I got them correct, the rpms move when I crank, yes the coil pack is grounded to the head, and I can seem to figure out how to check the resistance on the coils, do you check the coils with the connectors in them or no?

And I did but code 11 isn't showing up anymore after I charged the battery and all the grounds are good.

Okay still doesn't run, but I don't think I'm getting spark on all of the cylinders, I think the coils are bad, I tested fuel but shorting b+ to fb and heard fuel go into the Rail then I grounded the injectors and saw fuel in the cylinders so fuel is not the problem, I've done the timing like 30...