Tcs/slip Light On With Pfc

[rb2534]

I seacrched and found no definitive answer other than faulty coil packs of dicky AFM

Installed my power FC on my 34 GTT today in order to get ready for tune, I let the PFC by the 30min idle and so on.

Mods are:

Power FC

Turbo back

Splitfires

.8 plugs

FMIC

Apexi power Intake

Profec B

Walbro pump (hard wired)

Standard AFM

As soon as I started the car on the PFC the TCS and slip Light came on and stayed on, after the 30 minute idle self tune and a very slow run around the block all below 3000rpm as its untuned the lights wont go off. While driving the highest the knock ever got was 9 and everything else looked pretty good. On Idle the AFM was between 1140-1150mv

On a rev then after settling down a few puffs of black smoke came out of the exhaust and you can definitely smell fuel when idling but theres no puff of black smoke on idle.

With the factory ECU this wasnt happening, I have had the PFC running both on Standard R34 Intake and Power intake selections on the hand controller but still no difference.

Coil packs are splitfires and once again this issue was never present on the standard ECU, I only put in the PFC because its going for wheel allign tomorrow about 2 mins from my house and I wanted to put a rev limit on it so if they do need to take it for a run they really can't do much. I will be making them aware of this anyways its just a back up. Also the car will be sitting till dyno so might as well get it all done now.

I also had the Apexi Air Intake fitted to the stock ECU to check everything and no light, i have unplugged and checked the pins on the AFM connector and all good.

Anyone seen this before?

Edited August 22, 2012 by rb2534

[rb2534]

Also running standard injectors, took it for another light footed lap after checking it all over again.

AFM around 1220mv

Timing peak hit 45 but was around the 15 on idle

The profec B is set to very low boost, I have never touched these and I am waiting to get this set up on the dyno so I have set it only for a few pound and it does have a hesitiation at around 3000rpm above if you very slowly drive it to those revs once again on light throttle. I put this down the fact that its the boost controller kicking in and the engine not getting much boost because the gauge will show only small amount of boost and the usual turbo flutter happens unless i short change it below this. On idle the Profec and boost gauge show a vacum between -400 to -600

It also idles rather high around 1100 even when warm and take abit to settle down to around 900-950, for example pulling up at lights it will hold revs then slowly go back to idle. A mate warned me about this and this has only happened since elimintating the BOV and running different turbo, after a big rev it will stall and most times go back to idle by itself but somtimes it will stall. Like all good mods i've learnt to mod my driving to suit lol

I know these issues will need to be sorted out with a tune which I am waiting for and the car does not need to be driven but I want to bring it to the dyno without any lights on or issues.

Once again thanks for any help

[DVS JEZ]

Retry the stock ecu to see if light comes back on. May be that u unplugged something around tcs throttle and forgot to refit

[rb2534]

Just out of curiosity if it does eliminate it there may be a fault wth the PFC? I know ive had this PFC in before and these never came up. Also when I fitted the AFM this happen even on stock ECU so thats why I thought it was the connector this time but it appears to be all good.

I will refit it and see but I do have a brand new Z32 AFM here which I may just end up fitting if this continues

Cheers

Edited August 22, 2012 by rb2534

[DVS JEZ]

Its normally something simple. But always chase back what u have recently touched. Its normally something u have done. Or otherwise just unlucky.

If u still doubt the pfc try it on a mates car

[rb2534]

Started again with PFC in - lights on

Pulled AFM plug off, check and put back on - lights on

Removed PFC and put standard ECU back in, no lights

Put PFC back in and lights still on, sometimes they quickly turn off before they come in other times they stay on. really can't work this out as it has never done this before when I've had this PFC in. The only other thing have changed is going from a K&N pod to a Apexi Power Intake.I also picked both these 2 options on the hand controller and no difference and I'm sure it saved my selection.

Really out of ideas unless there is something in the PFC control unit that needs to be looked at with a laptop?

[paulr33]

what does SENSOR SW CHECK look like under ETC

is any sensor name highlighted in bold?

is this the same as the active lsd in the ECR33?

[rb2534]

I took a pic also but the only things high lighted in bold are the dots next to the letters below, the black cirle only means the relays or switches are workign dont they?

IGN

ECC

A/C

F/P

O2H

ACR

Uploaded with ImageShack.us

Its a R34 GTT 4 door turbo, not sure what you mean about the Active LSD but I did read somewhere on a UK forum about traction control offline?? I couldnt find anything solid on it other than that statement though

I also held the up button on the handset to do that debug mode and all that came up were the letter "NT"

Edited August 23, 2012 by rb2534

[DVS JEZ]

Also ensure the boost control kit is turned off. Just to be sure.

[rb2534]

boost if off - turned it on and the engine light came on, i turned it off and engine light turned off

air flow warning is on

injector warning is off (that made no difference)

knock warning is on

02 F/B control is off

This unit is second hand and has a map in there, i was thinking of doing a data init to start over and do the self tune but ive had this in my car before and these lights never came on.

The only difference between now and last time is ive installed profec b but and defi gauges and removed the factory 3 gauges. afm has been pulled off a few times to do intercooler and other work but as i said with stock ecu no lights

might be worth trying a date init and starting over

Edited August 23, 2012 by rb2534

[DVS JEZ]

Very weird.

[rb2534]

Ive just noticed in settings i can set boost on the 4 steps but im not running a controller and i have the function switched off in the menu

settings are

1 .70 48 255

2 .80 54 255

3 .90 60 255

4 1.00 66 255

dontknow how this is but i did a data init, started all over and ther TCS/SLIP and Engine light came on, turned the boost controller function off and engine light went out but TCS and SLIP are still on. currently letting it do its self tune but i doubt that will change anything

Edited August 23, 2012 by rb2534

[rb2534]

Did self tune and lights still on, removed PFC and plugged in factory ECU and everything fine and no lights so I think even changing AFM won't make a difference.

Still can't work out how I have a boost controller set up display that I can muck around and mod in the settings menu when I clearly have it turned off in the menu.

[paulr33]

the boost control kit wont cause the slip/tcs lights to come on

the boost control settings are always displayed even when the kit is turned off

if the kit is turned on and not connected the check engine light comes on cos it cant detect the boost kit map sensor

that sensor sw check screen looks fine - if a sensor is f**ked the names goes bold highlight

black dots mean switch or relay is on - so all normal here

the only thing i can think of its the same as the ECR33 active lsd

where the lsd computer is expecting TPS signal from the stock ecu and becuase the PFC you are using doesnt do that, the SLIP/TCS chucks a spaz

have you got another friend with an ER34 you can check to see if theirs works?

has this PFC worked in your car before?

how does it drive? any misfire or other wierd shit?

form memory coil packs toast in ER34 turns on TCS/SLIP (no idea why) but thats what happens apparentyl

but its odd that its not on with stock ecu

this was what i had with my ECR33 and active lsd

stock ecu fine, powerfc Slip/Active LSD would always fail

[rb2534]

Yeah as I mentioned the check engine light did light up and go out when i switched the boost controller on and off so at least that's cleared up. And if the boost display settings are always showing then that's fine.

I had this ECU hooked up in my car when I first bought it a little while ago and no lights, its just been sitting the cupboard waiting to go in right before tune, The only thing I have done in the mean time is hard wire and fit new in tank fuel pump, fit splitfires, .8mm plugs, boost controller, FMIC and gauges. I don't remember disconnecting anything other than the regular plugs and connectors to remove the dash etc.

With the PFC in I have only done about 1km of driving and not even gone over 60kmph so maybe the active LSD needs to hit speed or spin the wheel to work itself out or do some calibration thing. When I did hook it up I removed the AFM to do some other work and these 2 lights came up with is usual with stuffed coil packs or AFM fault. But I pulled over, turned the car off, pulled the AFM pug out, cleaned it and put it back in and restarted, drove then the lights went out. And the voltages are between 1100-1200mv on the handset, as I said I have a Z32 which i was going to fit and I;m still not convinced this is at fault.

As I haven't had it tuned I'm not driving it above 2500-3000rpm, it does have slight hesitation once it starts coming on boost but I've put that down to the Profec B boost controller kicking in as I have it set on stuff all boost until I get it on a dyno and can set it up safely. I also set an alarm on the Profec abit above the boost target and it reaches that so the possibility for a vacuum or boost leak causing a miss of hesitation when loading up should be eliminated. And once again it does it with the stock ECU and it free revs no worries, does not miss at idle and prior to fitting the turbo it went fine.

I'll have to put up a post to borrow someones 34 and check this out but this is most likely been dynoed early next week so i'll just wait til then and see how it goes on the dyno. As for anything else wierd on the car noting else sticks out, it idles, drives and does everything the normal ECU does so you could be right about the active LSD.

Did a fault code test on the factory ECU obviously , fault code 55 came up - No malfunction

Appreciate the help but until I get the dyno done there not much more I can do. I will update it once its done and see if is resolves itself.

Edited August 25, 2012 by rb2534

[paulr33]

i reckon its coilpacks

given the hestitantion youve described

find some ER34 threads where people have had coilpack issues

see if its the same issue - TCS/SLIP lights come on

[rb2534]

Did the fault code check and fault code 55 came up, Almost every forum says the two lights say coil packs or AFM, it has split fires installed and as I said the lights never come up on factory ECU, one would think the lights would come up on both ecus if there was a legit problem with the coils.

I'm going to remove the coil pack cover, check the connections again and I have a spare loom so i might bring that with me and go from there

Edited August 25, 2012 by rb2534

[rb2534]

As I'm running smaller gapped plugs with near no boost this could be causing a miss maybe? Almost everyone I spoke to said run smaller gaps after about 1 bar, before that don't bother leave them at 1.1s

Im running .8s

Edited August 25, 2012 by rb2534

[paulr33]

bov wont matter

can u try std coilpacks and see if the lights come on again

i dont know why er34 has cookiy throw slip/tcs on when coilpacks die but im pretty sure thats what it does

[paulr33]

see http://www.skylinesaustralia.com/forums/topic/400337-r34-gtt-dreaded-error-code-21-coilpacks/page__hl__coilpack__fromsearch__1