Ok, I don't have a PFC myself, so I'm not sure what's required to install. So, you had to cut wires to install it? Did you tape off the exposed ends so they wouldn't short against the body? Maybe when you were plugging in the commander, an uninsulated end, or other parts of the harness moved. Did you have to use any of those crimp-on T taps? Those can get flakey.

I would expect a mechanically stuck injector to present itself with the stock ECU in as well. That is, unless the PFC's injector drivers / power supply are under specified. Are you running upgraded injectors? Otherwise, everything does seem to point to the PFC.

What kind of connector does the commander have? Is it possible a pin was bent when the connector was inserted? Such a mishap could kill the PFC's internal power supply and/or datadrivers to the commander (which may be shared with other components inside) among other things. It all depends on how robustly the dataport was engineered, electrically.

Checking the harness is easy, in concept. But it's tedious work. You'll have to get yourself a continuity tester, disconnect everything (ECU & sensors), and check for continuity between the ECU side of the harness and the other side where it connects to various sensors. It'll be a big time investment.

If you're worried about the PFC install, you'll have to wait for someone who's done this before to respond.

 

well, I didnt cut the wires to begin with, and just had the pins cut. With this, the car ran great for 5 days. When the problem happened, I was told that I mgiht have not cujt the pins well enough, so I cut the wires tehn to make sure.

Exactly as I was saying about the stuck injector. And Im running stock injectors. I guess I'll wait till I get the word on my ecu condition and either end my problems, or move on from my current stand point.

 

hey you should look to see how much gas is in there, take a lighter and look through one of the plug holes.

 

i was there with the other car (mikes) and it wasnt a faulty injector. We tried three different ones in there. What it ended up being if i remember correctly, he forgot to cut those 2 or 3 wires in the harness before installing his PFC. PM benjamin or jason93rx7r1 for more details as they were there from page one.

-Zach

 

IVe cut the pins, and the wires. so I know it cant be that.

 

Ok, I looked at the datalogit website. It looks like the commander uses mini DIN connectors (like s-video does). One of the power pins on the commander may have bent when you inserted it into the PFC. I could see something like that easily killing the whole thing.

 

Get a Haltech! Solves most of your problems!

Jp

 

I was actually thinking about getting a haltech if my wiring harness is fubared. But im really a beginner when it comes to tuning... how hard is it to just put the haltech in and have the car just run a base map like the power fc does?

 

Gideon the only problem wtih your theory is that the power FC was plugged in and working properly. When this all started I didnt unplug any of it, all I did was plug the commander in.....

 

From my previous post: "One of the power pins on the commander may have bent when you inserted it into the PFC. I could see something like that easily killing the whole thing."

I know you said the PFC was working before. I'm saying it may be possible a bent pin on the *commander* connection may be at fault.

 

im definetly not a power fc expert by any means, but i know that you have to pull some pins are different version (for a/c i think). Is there any way Rx-7$4$me could have pulled a wrong pin or two and fucked something up that way?

And for that matter, can someone tell me why after tons of money and years of research we are having to pull pins? Or does apexi just have a bunch of monkeys on an assembly line putting this **** together.

 

Well, I got a sheet with the FC that told me exactly which pins need to be removed. I followed it perfectly, double tripple quadruple checked it, and cut the exact same wires ( keep in mind I cut the wires AFTER this all started happening because the theory was brought up that I didnt cut the pins well enough ) so I double cancelled that potential problem.

Inis I know that our power FC's are the exact same ones the japanese get as well. However, our cars have more emissions crap, and im sure those pins controll different things on the japanese cars due to their different emissions setups resulting in us having to cut pins so our cars wont run like ***.

 

boink