[Mk2] [Turbo] Car trouble. Idles but any revs, just cuts out and dies? *UPDATE*

[Blacklightning66]

so what are you going to do?

It would seem that the PFC is knakared if you used it on another car with same to simler effects dont it?

[JJ]

Jim,

I'll get this Pheonix Powered ECU over to you on loan, should get you up and running about nicely... till you decide what you want to do...

An option though, stick the ecu in the post to me, I'll check the map on it see if theres any noticable holes in it... I've seen instances on a chaps ecu where the ignition table just wipes itself each time its switched on... no solution to it...

I can try it on mine to see if runs crabby on mine..... if its not firing one of the injectors, can localise it...can probably open it up and check the printed circuit boad for a break to the pin... - you could do that ??!!

It is software on an eprom, so no reason why it couldn't corrupt ?!?! Just a thought...

Going back to establishing the cylinder problem.... can you get it up and running.. pull one lead off at a time... and that should determine the cylinder..... then go look at the rev 3 pin outs.. look for the particular injector pin outs... pull the lid off it and have a nosy about for a trace crack in the track / or signs of burn out track....

[jimGTS]

Jim,

I'll get this Pheonix Powered ECU over to you on loan, should get you up and running about nicely... till you decide what you want to do...

An option though, stick the ecu in the post to me, I'll check the map on it see if theres any noticable holes in it... I've seen instances on a chaps ecu where the ignition table just wipes itself each time its switched on... no solution to it...

I can try it on mine to see if runs crabby on mine..... if its not firing one of the injectors, can localise it...can probably open it up and check the printed circuit boad for a break to the pin... - you could do that ??!!

It is software on an eprom, so no reason why it couldn't corrupt ?!?! Just a thought...

Going back to establishing the cylinder problem.... can you get it up and running.. pull one lead off at a time... and that should determine the cylinder..... then go look at the rev 3 pin outs.. look for the particular injector pin outs... pull the lid off it and have a nosy about for a trace crack in the track / or signs of burn out track....

if your willing to have a little nosey for me, sure ill send up the ecu as well, that would be a great help thanks....
(and for sure, would love to try out this pp ecu, pretty sure i have 850s)
i asume youd copy across the map onto your software before having a proper play with it? i dont want to be losing my maps! lol..
tho guess ryan wouldnt have a problem emailing the *.dat file to you to pop it on if it got lost???? you could maybe spot differences in the maps if they have gone out of sink somehow compared to ryans copy??

am not really sure what im looking for on a circuit board tho unfortunatly, would make no sense to me. so yeh i could prob find out which cylinder it is, but wouldnt have a clue what im looking for on the ecu, lol.
defo firing lead wise to each plug, just obviously not firing an injector i think.

???
thanks
jim

[Blacklightning66]

Jim,

defo firing lead wise to each plug, just obviously not firing an injector i think.

???
thanks
jim

Pull the plugs out, so many people never do this, it will tell you whats going on.

if a plug is not firing , but the injector is the plug will be black and wet.

If the plugs are all crusty light brown the all is good with them. - but which one is COLD to the touch

you could take the injector power supplys off one at a time in turn also jim and see if any make a difference to the running.

[jimGTS]

big thanks to JJ, whos lending me his ecu to try out this weekend, hopefully i can at least drive the car around.

and ive bit the bullet and gone and bought a brand NEW Apexi Power FC

[JJ]

Another scatter cash owner ! Or is it no patients !!

If you want, send the new one upto me, I'll blow your map on ( if you send the old ecu up ).. if the map is fine !

Actually... need to think where I put that laptop

[jimGTS]

Another scatter cash owner ! Or is it no patients !!

If you want, send the new one upto me, I'll blow your map on ( if you send the old ecu up ).. if the map is fine !

Actually... need to think where I put that laptop

what i might do is just go straight to ryan for another remap with a tweak of the cams, more boost etc etc. he can just download my old map onto it at the time, and tweak on the dyno.
saves me sending up the ecu.

ill send you up my "busted" one tho, just to check.

either way, scatter cash or not, lol, the car needs to be running and driveable to enjoy it. if it means going into some savings, so be it.

[jimGTS]

Small update

am still a litle concerned about my coil, it's not within bgb specs. I've been able to find out that People have used coils between the turbo revisions, and are the same part number, so I can only asume are ment to give the same resistance specs??? There is no online bgb for the gen3/st205 that I can find that gives this resistance info. (yes there is a st205 bgb, but it doesn't contain the ignition section I need).

Could an out of spec coil cause my problems???

I had the cam cover off to check if the belt had jumped a tooth, but to be honest, I don't know what I'm looking for.
The hks cam gears are still in the same place as they were when I checked em ages ago. So they haven't come loose.
I popped it to tdc, and when I aligned the exhaust cam to tdc, the inlet cam was maybe 1/2 a tooth from being tdc.

Now is this due to the advance and retard of the cams, or is it perfectly normally to see this sort of difference even on a stock car stock cams? Or is it no where near enough to cause my strange issues so can be dismissed??

You may just be able to make out the tipex marks on the cam gear by the belt (made by the previous garage/owner in japan)






I also performed a compression test which showed good compression
180-182 across the board.

I also swapped in my very old rev3 leads, no difference.

I tried JJs Phoenix power ecu also but the car still behaved the same weird way. Thanks for sending it down. Much appreciated.

Any of this help anyone??

[jimGTS]

I also swapped in some old plugs. No change.

The ones I took out I have to say were a crazy black all over the tip parts.
Probably due to all the stop start testing???

I also removed the leads while the engine was running, and have to say couldn't notice any change in running/sound.

[jimGTS]

never thought id see the day where i had to get the car trailered, but hey hoo...needs must

off to Kai Performance to see what they can make of it...
cars in good hands im sure.

[jimGTS]

ok another update.

been at kai performance for a few days.

it was discovered the exhaust cam was out by a tooth.
which kai have sorted (and left my hks cam gears in place).
they checked various other things and can only put it down to a busted powerFC and the cam being a tooth out.

it doesnt stop the car dieing on my powerFC, but it does sound alot better on my power FC, its not missing at all, and revs pretty freely!!
unlike this past 4 weeks.

on the standard ecu, the car almost sounds like stock on idle!
the loping and cammy sound has virtually disappeared even at 900rpm!
just listen to the vids ive already posted, to the ones below, you can here the difference in the lopey cam sound!

as said the car sounds almost stock on stock ecu, revs nicely, and was driveable on the way home. obviously not helped by the massive injectors in there, but was fine. (obviously no high revving on load or any boost).

i had thought that they returned the cam gears back to stock, as it sounds alot more UNcammy, but upon checking the cam gears, there still exactly as they were before, advanced and retarded the same amount afaik.

tho it is weird when the car was fine the past year, it sounded alot meatier on idle due to the lopey cams, thats nearly disppeared now.
perhaps its always been a tooth out? and just that the powerFC decided to die the other week???


ive got some vids here. to show you the changes.

kai couldnt do much else it seems, and can only really blame the powerFC as the fault, a out by a tooth. as car works fine on the stock ecu now (to some extent).

all in all am pleased that the car is coming along. i just got to hope and prey the new powerFC that arrives runs fine.

thanks to warren and the guys at Kai, i just need to sort one issue out with them, but apart from that, car sounds alot better.

rev3 ecu





powerfc

[Martin F]

Did you manage to get this fixed then jim ?

[jimGTS]

i have been waiting on a new powerFC the last 4weeks!
should have arrived within week, week+half!

in the mean time the manifold is off again due to that lengthy wait, so im getting a new one made up to replace the old one....custom made.
so not a cheap month of modifying i tell you!

summer was going so well!


either way, upside is it seems one of my cams has always been a tooth out since ive had the car, as it now idles much nicer than before, more stock sound than crazy cammy engine sound (which sounded sweet, lol).
anyway, that should release some more ponnies so Ryan at 2bar tells me, that cambelt being a tooth out and all.
so some good may have come out of it.

but ive had no fri88ing car this past 2 months in this awsome weather, and missed multipal shows!

[Rory]

Jim - Why did you decide to get another apexi pfc and not something better?