1JZ SC300 will not rev past 2000 rpm STILL!
#91
Lead Lap
Thread Starter
Harness has been in for a few weeks and the car will not even start anymore.
For some reason at ACC the car cranks. At start position it just clicks. Strange. The only thing that has changed is the new Tweaked harness.
Mike is attempting to talk to tweaked about it.
For some reason at ACC the car cranks. At start position it just clicks. Strange. The only thing that has changed is the new Tweaked harness.
Mike is attempting to talk to tweaked about it.
#94
Lead Lap
Thread Starter
Found out why no cel.
So Mike said he's been trying for weeks to get Tweaked on the phone to fix the harness. He couldn't so he took it on himself and got it fixed. So now the car starts and doesn't flood.
I got to say I'm not pleased with Tweaked. I probably wouldn't buy again. The quality is good but not worth $1000. Especially since there was a mistake and they did not make enough effort to correct it.
So even though the engine started it's still backfiring. Mike did a leak down test and two intake valves on cylinder 5are stuck open.
1j is non interference and the timing has always been spot on so the odds are oxidation from sitting got the valves stuck. So I found a method to free them without removing the head. You take the cam out, and put rope in the. Ylinder. Put that cylinder to TDC to push the valves up. Soak them in lube and use a drill to spin them free and done. I hope to try it.
So Mike said he's been trying for weeks to get Tweaked on the phone to fix the harness. He couldn't so he took it on himself and got it fixed. So now the car starts and doesn't flood.
I got to say I'm not pleased with Tweaked. I probably wouldn't buy again. The quality is good but not worth $1000. Especially since there was a mistake and they did not make enough effort to correct it.
So even though the engine started it's still backfiring. Mike did a leak down test and two intake valves on cylinder 5are stuck open.
1j is non interference and the timing has always been spot on so the odds are oxidation from sitting got the valves stuck. So I found a method to free them without removing the head. You take the cam out, and put rope in the. Ylinder. Put that cylinder to TDC to push the valves up. Soak them in lube and use a drill to spin them free and done. I hope to try it.
#99
Pole Position
Read this entire thread from page 1. Happy you finally got it sorted out. How's the car driving now?
#101
I understsand the tweaked harness was messed up but what fix actually got the car running?
I'm hitting a weird "wall" at about 2k RPM's also. This is a JZX110 DBW swap into a GS300 on the JZX auto trans. Car is stock except FMIC/exhaust/ intake filter
Any help would be appreciated before I start throwing money at it. I'm going to try to pull the codes, if any, tomorrow to see if there is anything there.
-Adam
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