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After many days of tuning, I cannot get my engine to rev past 5500 rpm. I have tryed many other set up and it seems to be stopping at 5500 rpm. I'm starting to convince myself that it may not be my set up in the EMS software but it may be either spark plugs or my ignitor is no good. I am...

I give up. I've tryed that set up and the ISC will not open. I have used the butterfly screww to keep throttle open. I thank you very much for you help.

Thanks for you help nosechunk. I've been so busy. Full time student and full time job. I'll be working on my car tonight and I will post a screen shot of my set up on the Idle loop. I do have it set to stepper. Base Frequency is 89.9. Initial open is 20 and cold is 60. Idle vacuum keeps on...

Finally I had a chance today after work to rewire it. I still can't get the EMS to control the motor. I logged into the aux and set it to #12 close loop idle. I did everything that was mention. I close the valve manually and check to see if the EMS was able to open it. It doesn't respond. I'm...

I think we should give the guy a chance to learn. You have to remember that we all started somewhere. Some had personal trainer, some took classes and some learned it the hard way.

I think your a little confuse now. You should forget about all the advice and start fresh from here. I'm Assuming that you have the timing mess up. Follow these step to completly reset timing on the following link. Use step 7-9. Read each step and substeps to fully understand it. READ IT...

I've read up on some forums and people claiming that a standalone got them to pass the test. I don't know if it's true. But like you said, your out of money.

Here is a picture. Take a look

Ok, Thanks nosechunk. As far as the setting, did you select PWM or Stepper? what frequency did you use? and whats the setting did you use for max step?

TDC means "Top Dead Center". It's a fancy word meaning that the piston is at the TOP (highest point possible). Piston 1 and 6 should be at the top as it is partners.

BTW, that diagram link that nosechunks posted is the one that I used. By following the opening and closing steps, I was able to make it open and close when bench testing. I'm pretty sure that the 1jz use the same as 7m. Also, why is there a coolant bypass built into the ISCV? Does the ISCV...

My problem is that, I have wired it the way figgie said to be but it doesn't work. I have been testing the terminals on the ISC plug and it seems like there is 12v coming out of the wrong terminals in every different setting I have use. I have 12v to 3 and 5, but sometime there is also 12v on...

I don't know if the AEM is similar to the EMS on controlling the ISC. The 1jz is 6 poles. 2 battery and 4 (pull to ground) steps for opening or closing. I have spent the last 4 days on figuring how to set it but no luck. I have tryed at least 40 different settings. I don't think the PNP harness...

Thanks figgie, I needed a confirmation. I have checked all my wiring and figure out that I wired some wires in the wrong order. I fixed it with the confirmed firing order and now it works like a charm. I am tuning some stuff as for now. The only problem I have left is the stock IACV. I don't...

I've been have trouble keeping my car idle or running. I have just finish the wiring on my 1jz a week ago with the loom that came with the Motorsport 6860 EMS. I use the firing order of 1,5,3,6,2,4. My car is running crappy. At first I thought it was software issue and read the manual like a...