Recent content by Radial

sounds like you are missing sync from 5-6k to me. Check your trigger system for errors (check for full sync on cam+crank all the way to the redline).

I'd say stay out of the FCD route. Especially since this is a AFM engine, not MAP based as the old 1JZ. You wont achieve much, exept wasting money because tricking with AFM signals does not work direcly as with MAP. On a MAP setup you only trick with the pressure signal to the ECU, temperature...

The only 1J ecu that works like "12v on/off" on the fuel pump utput pin, is the one from JDM MK3 supra. All the other 1j and 2j ecu's sends a 5v PWM signal on the fuel pump pin. The 5v PWM signal ends up in a Fuel Pump Controller close to the tank, adjusting the rpm of the fuel pump as...

In short: If you have a 4-wire o2 engine harness, you need a 4-wire o2 sensor. The problem is that a 4wire setup has its own o2 signalground (not grounded through engine/exhaust) If this engine harness signalground is shorted to engine ground, you could in theory have used a 3-wire o2...

I need to take new pictures, cant find any now. Sry.

Ah shit, I missed the N/A intake pipe totally. Thought you where talking about the plastic cover on the GTE models. Cant see a good way to sort that N/A intake without going CNP (CoilNearPlug) with wires. Make two bracket for 3 LS coils on intake cam cover. 3 coils fwd of the intake pipe, 3...

Yeah, LS coils are nice. But you don't need to buy heat sink style coils...The ones without heat sinks are more than powerful enough, and more linear. Branded coils are very important, maaaany fakes out there. Keep in mind though that most coils without heat-sinks will auto-fire with dwell...

You need to confirm this from a different source, but from memory you just cut the boots to desired length. Some minor mods might be needed to cut the springs some as well.

VVT-i coils are dumb coils, so you need a separate igniter somewhere...a step in the wrong direction. It is said that 1zz coils can be cut about 1" to fit under the 2jz cover...google on that. I also found this some time ago.... stealthy LS coil project. Just need to get BRANDED coils from a...

If coils really are suspected, just flip them upside down and install some regular sparkplug wires in between the coil output and the plugs. That way, the cracks in the coils will not short the spark to ground inside the head. But i'm still guessing on fuel.

From memory injector 1-2, 3-4 and 5-6 are all fired in pairs on the stock 1j wiring/ecu. Unless you have changed that with the AEM, there is no way 1,3 and 5 can run different from the others, if not clogged. (with ignition ruled out, of course)

Sounds like clogging of injectors to me The ones with white powder on the sparkplugs are most probably clogging, causing lean condition. The black ones are over-fueling because they are not clogged yet. I must say that your tune is most probably incorrect, if it was tuned with the misfire...

I've heard about the fuel dampener issue before, but that's almost always with OEM electronics tuned with SAFC or similar.

This is the most common problem to any drifter. Going sideways reduces engine bay airflow dramatically. The solutions are usually: - Install the biggest radiator you can fit. I use a huge 62" wide flex-a-lite universal radiator on mine with a 3500cfm+ electric fan from a OEM powerful Mercedes...

What kind of fuel are you using? E85 on stock lines? If so, check for injector clogging and fuel pump clogging inside the tank. Another thing is crank/cam sync in your EMS... the most common problem on any EMS is noise on teese sensors causing the EMS to count the incorrect number of teeth -...