Nick Bryan Posted November 7, 2021 Report Share Posted November 7, 2021 Hi All, I removed my 2JZ from the car and did a refresh of a few things, cambelt and new alternator. Since putting it back in it wont start, i have checked the timing with a timing light and is at 10 degrees, using a test like the injector is getting a pulse at cranking but the plugs when removed are dry. Before going to far i wanted to know if anyone had this problem, im thinking that maybe the injectors are blocked or something is holding it out in the ecu. Please find attached trigger scope, tune and logging of trying to start. not starting 2.llg S15.pclr Trigger Scope Log 2021-11-7 10;13;15 pm.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 7, 2021 Report Share Posted November 7, 2021 Your fuel pressure is regularly dropping to zero. Quote Link to comment Share on other sites More sharing options...
Nick Bryan Posted November 7, 2021 Author Report Share Posted November 7, 2021 Ill check it after work today, i did have the wrong sensor wired in and unsure if this log is before or after i changed it, thank you 14 minutes ago, Adamw said: Your fuel pressure is regularly dropping to zero. What would be causing this? Blocked filter? Im just confused as i litterally just removed and put the motor back in Quote Link to comment Share on other sites More sharing options...
Vaughan Posted November 8, 2021 Report Share Posted November 8, 2021 4 hours ago, Nick Bryan said: What would be causing this? Blocked filter? Im just confused as i litterally just removed and put the motor back in Is the Fuel Pump Running. Are the feed and return hooked up the right way around. Are you getting fuel to the rail. Are you getting fuel out the return. Quote Link to comment Share on other sites More sharing options...
Nick Bryan Posted November 8, 2021 Author Report Share Posted November 8, 2021 Yes fuel pump runs as we get to fuel pressure, but im curious now if the PDM running the pump is faulting, the whole system has been redone so it would be hard to get the lines around the wrong way. 10an feed 8an return with fuel rails in paralell, i was getting fuel back to the tank but that was manually running the pump through the PDM Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 8, 2021 Report Share Posted November 8, 2021 A quick squirt of some starting fluid into the intake will confirm if you have a fuel supply issue or not. Quote Link to comment Share on other sites More sharing options...
Nick Bryan Posted November 8, 2021 Author Report Share Posted November 8, 2021 3 hours ago, Adamw said: A quick squirt of some starting fluid into the intake will confirm if you have a fuel supply issue or not. Hi @Adamw I have got the fuel running properly, check the cam timing as well as the ignition timing and still not starting, her is the latest log S15_211108.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 8, 2021 Report Share Posted November 8, 2021 You've got regular trigger errors in this latest log. Looking at the triggerscope it is because the cam edges are about 30deg retarded from where they should be. Some of this maybe caused since the stock sensors have been replaced by the hall sensors but it may also be something like the cam timing is possibly a tooth out too. You could try changing trigger 1 edge (crank) to rising - it may be just enough to make it happy. If it does run with that change then base timing will need to be reset also. Quote Link to comment Share on other sites More sharing options...
Nick Bryan Posted November 8, 2021 Author Report Share Posted November 8, 2021 Hmm okay but the sensor is on the inlet only and this hasn’t changed? Also I would have assumed it would still start but not run well? Here are the timing belt photos Edit: I stand corrected i used the dot and not the line Quote Link to comment Share on other sites More sharing options...
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