Thread: Swapped VE fuel rail causing problems?? Problem FIXED!!

Anybody want to buy a VE? Seriously though, I just installed a VE fuel rail on my SR20VE motor. I was using a modified RR SR20DE rail before but it wasn't sealing right even with new VE injector seals. My car is already running rich because temporarily using DE ECU until I can get my Calum RT installed, so I swapped out the VE injectors and put in DE 259cc side-feeds.

I made sure to install the return line coming off of the FPR and the feed line by the damper. But now I'm running insanely rich, the car wants to stall, but doesn't and there is a very weird smell coming out of the tail pipe. I also saw a bit of smoke from behind the intake manifold??

I didn't change anything other then the rail. I reset the ECU after the install to see if the car would run better, but I know that isn't the problem.

The rail seals way better than the DE rail so I figured I would have a better running engine, not noticeably worse.

Is the FPR somehow out of wack on the VE rail? Although it's stock, so I wouldn't think so.

The only thing that I can figure is that the RR feed and return lines are different than I thought, but I thought all of Nissan's return lines fed off of the FPR? If I had them backwards the car wouldn't start and drive right?
I can feel flow in both lines.

Car is really sluggish and backfires worse than before I swapped the rails.

Anybody have any suggestions, am I missing something here?
?????????

Get a proper ECU and Tune, use the correct injectors and you should be fine.

I realize my setup is not optimal. I have a Calum RT and the proper injectors, I will be installing them in the next couple of weeks, but can't right now.

The car was running fine, not optimal, but fine before I switched to the VE rail. I used the same DE injectors, same everything. But my car is running like shit and barely accelerates and is way richer than before but I have the same injectors in. Car is backfiring way worse than before and wants to stall. The only thing keeping it going is the stepper motor in the IACV.

Only thing I changed was the rail.

Put the DE regulator back on and try again.

I guess I can try that. The regulator was one of my questions. I'm just wondering though, if both the DE and the VE engine are programmed for three bar than wouldn't both of the regulators be the same and set to deliver around 37-38 PSI??

Is it standard for VE guys and I know there are a few out there, who are using the VE rail with a DE ECU to swap the reg's. DE reg on VE rail. Has anybody else had to do this?

You may have damaged one of the lower injector o-rings. Pull each injector and carefully inspect the lower o-rings. Use some vaseline or something similar when reinstalling them.

C

I used new VE o-rings and used a tiny bit of oil on them as lube and was very careful as I've dealt with a damaged o-ring before. I was careful!

Maybe I skimped on the lube. I guess I'll pull them tomorrow and see. They didn't go in very easy I know that much. Maybe I'll just try the VE injectors? Shit, It couldn't get any worse I don't think.

Is this your daily driver? If it's not I would recommend not driving it and waiting until you get the rt ecu. The car is probably running like shit cause your running it with the rr ecu. Running very rich can damage your engine.

Sent from my VM670 using Tapatalk