CEL P1235 After turbo kit?
 

Hello FI guys

Im getting a CEL P1235 code which is the fuel pump after a turbo install.

Any of you guys getting this?

Car would stall after like 20 miles and will not run again unless i reset the ecu.

Car will run good again but it comes back.

Let me know what you guys think

What FP did you install?? The FP installation is the trickiest part from a mod stand point of this car. I can now do it closed eyes.

I'd pull the pump back out and triple check everything, you can't risk fuel issues

yes, P1235 is 'fuel pump control out of range'. not good.

To speed this up, you should include this information when posting about the issue:

1) What turbokit?

2) What, if any, additional modifications besides the turbokit?

3) Was it installed at a shop, or by yourself?

4) Was the fuel pump modified or replaced with an upgraded unit?

Paul, it is a custom turbo kit by WORKS

Car also have the full works exhaust system

Right now it is still using oem FP. But It was already replaced under the chirping TSB

I know pete will figure it out soon but while im waiting,i just wanted to hear what you guys think about the CEL

Still oem but will be replacing it with the DW 65C

It shouldn't have anything to do with the turbo kit, then. It's much more likely that when it was replaced under TSB, it wasn't done properly.

Turbo kits and super charger kits shouldn't touch the fuel system in any manner, unless there was injectors/fuel pump replaced during the install. So if there is an issue with the fueling, it's a separate (coincidental) issue.

There are two fuel pumps, the mechanical direct injection pump which gets replaced under the TSB and the electric port fuel injection pump in the tank. Which pump is this CEL referencing? My guess is that your tuner is doing something weird with the direct injection that the car isn't liking.

yeah, like King Tut says, we have two pumps and the code might be because the tune is doing something weird with it, especially since you haven't installed yet an aftermarket in tank pump.

not sure which pump really is being referred by the CEL. i will try to replace in tank FP and see if it can remedy the issue.

what FP are you using by the way?

This is actually a CEL I haven't seen.

Are you misfiring J? Does it stall in gear or just in neutral? Any other DTCs or symptoms?

What ROM revision are you running if you are on Ecutek? The JA00C ROM revisions have a fuel control issue and you are supposed to use the JA01C. Some more info on your issues could help us diagnose.

long time no see mark.

I will have to ask pete what ROM we are currently running.

the car stalls while running. I took the car home from works and drove through 37. At first i was boosting all the way and everything was fine then after about 30 miles of driving, the car started to jerk and Ultimately it stalls on me while im in low gear.

The car would start up again but it automatically shuts off.

I pulled the battery waited for the ECU to reset then i was able to move again.

Stalling while in operation is not fun, but it's interesting that resetting the ECU remedies the issue temporarily. Maybe it's tune related?

But some early stock cars reported the issue: http://www.ft86club.com/forums/showt...t=12428&page=2 The prospect of an OEM issue could exist.

yeah it's a possibility. i just replied to that thread asking how it was fixed. it seems the OP never posted the final solution to his car.

i will ask pete to retune it once the new DW pump is installed

I have the one that Full Blown supplied with their turbo kit.

Updates:

Port injectior pump was replaced and it seems to run better. Still getting a fuel cut though.

So i think it is now a bad direct injector pump

Also i just found out that subaru has updated the TSB and has a new version of the HPFP as of this month.

I may have to buy the new pump since i doubt if subaru or toyota will cover it under warranty

Let us know what happens. Sorry your car is being fussy

How could these pumps just all of a sudden malfunction. Considering it happened right after a turbo install I would think it is something to do with the tune. The mechanical parts haven't been subject to much stress yet right? Even then they are designed to take that stress.

looks like an oem issue/defect.

just found new info that it might be a bad injector driver EDU

update
 

car is finally running once again.

it was not the pump, or the edu

it was mainly a grounding issue on the EDU
everything is now ok and fully boosting! :burnrubber:

Sorry for my ignorance but what is an EDU?

I am glad your issues are solved!

EDU is the injector driver

So im having the same issue, dealership checked the fuel pump injectors, nothing was wrong. Just had lj from fullblown send me oem Rom so I the dealership can do.a reflash, hopefully that works, no one really.knows whats causing it because I have seen many different solutions to the problem

My cars doing the same thing.. But once I took my turbo kit off. I left my danso 265. Now I'm getting this cel code and it doesn't even want to idle.