urgent help please! installed ALL SORTED :):):):)

right firstly installed bpu parts to the supra starting with double decats/fmic/fcd now when fitted all I took it for a quick drive and it seemed to of boost no problems until a loud POP silicone joiner popped off so we put that back together and now it just seems so flat it drives really poor does not want to boost past 0.9 and feels slugish in every gear..

it also hesitates when flooring it ever so slightly (miss fire)???

did a leak test-negative no leaks.

so took it to jm imports today and did a couple of things checked that the 2nd turbo had not failed by checking the blades on the turbo!

fitted grade 6 spark plugs (colder)

also the fcd was wired in wrong so wired that in correctly... could of that done any damage been wired in un correctly??

strange thing was if wired in correctly do not kno how it did not hit fuel cut??

any ideas at all here as its very annoying...

fitting bpu has actually made my car alot worse it was so much more faster before

please can any one shed any light ??

makes me think why on earth do I modify my car LOL

Have you fitted an uprated fuel pump? Boost controller? And are you sure you're getting 0.9 bar, or is it just under, and have you checked the coil pack clips?

the fuel pump will be next to inspect as the previous owner said a walbro fuel pump had been fitted.. no boost controller for now but it should surley be boosting fine with out a ebc?

yes 0.9 bar max it will go but like said it is very slugish!

the more I think about it got to be the fcd been wired in as all i have fitted is fmic and decats so the fcd is the main do you think??

also there was one wire that had been cut on the ecu as thought that was the wire that the fcd crimps in to but it wasnt..

I'm running the exact same FCD as you and wired it up following that site you linked and it works fine, had no issues at all! I would of checked the fuel pump before hand or at least bought one just incase, Then when you came to fitting it you would of A) Had one ready for putting in or B) one to sell if you have already

Did you have the uprated plugs done while you done BPU or waited till after? Checked all the pipe work for the intercooler?

I'm running the exact same FCD as you and wired it up following that site you linked and it works fine, had no issues at all! I would of checked the fuel pump before hand or at least bought one just incase, Then when you came to fitting it you would of A) Had one ready for putting in or B) one to sell if you have already

 

Did you have the uprated plugs done while you done BPU or waited till after? Checked all the pipe work for the intercooler?

with the vvti it is different thow as the vvti has 6 plugs instead of 3 so the diagram was not any good.

did a leak test and no leaks etc have double checked all fmic piping and is fine.

running out of options here

plugs have been upgraded today but bpu it 2 days ago again i keep saying boosted amazing till the pipe blown on so plugs would of been fine.. it seems it is getting worse and worse every time i drive it

do your pump next mate..(as you dont know whats in there)

at least your boost is up from 0.4 to 0.9 bar now ;-)

also some people have issues with RR (size of exhaust causing it not to boost to BPU level) - boost conrtoller is the way forward mate..

your FCD was wired wrong mate..(not sure if they can damage if incorrectly fitted)..but at least its wired properly now ;-)

What wires did you originally splice into for the FCD? If you know what pins that would be useful, see here for vvti ecu pinouts: http://www.2jzgarage.com/wp-content/uploads/2012/01/Supra_2JZGTE_VVTi_ECU_Pinouts.pdf as you could well have shorted something out on the ecu, also check what the wire that's been cut is as there all quite important.

For future reference the FCD should be wired into; Block B57. 5V constant on pin 2 (blue/red), Ground on pin 17 (brown) and most importantly you should have spliced into the TPS signal from the MAP sensor on pin 9 (black/yellow). This is how i have wired in my FCD with no problems.

You might have never triggered the fuel cut before the IC hose popped off, on my VVTi it didn't trigger until 1.05 Bar for over 3 seconds, is your boost gauge accurate?

You should really have grade 7 spark plugs for BPU, and how did you leak test the boost pipes?

Just gone bpu on my vvti so I will do my best to help out mate.

Like I said before mate check the ecu wires that we cut, make sure they have a good connection ( buy yourself a cheep solder iron and solder the wires back together and take them daft cheep crimpt connectors off)

What wires did you originally splice into for the FCD? If you know what pins that would be useful, see here for vvti ecu pinouts: http://www.2jzgarage.com/wp-content/uploads/2012/01/Supra_2JZGTE_VVTi_ECU_Pinouts.pdf as you could well have shorted something out on the ecu, also check what the wire that's been cut is as there all quite important.

 

For future reference the FCD should be wired into; Block B57. 5V constant on pin 2 (blue/red), Ground on pin 17 (brown) and most importantly you should have spliced into the TPS signal from the MAP sensor on pin 9 (black/yellow). This is how i have wired in my FCD with no problems.

 

You might have never triggered the fuel cut before the IC hose popped off, on my VVTi it didn't trigger until 1.05 Bar for over 3 seconds, is your boost gauge accurate?

 

You should really have grade 7 spark plugs for BPU, and how did you leak test the boost pipes?

 

Just gone bpu on my vvti so I will do my best to help out mate.

Ahhhh there is our problem mate! We wired it to number 10 air flow! We needed number 9. Dohhhhhhh!

See I knew we should of left it as we didn't know what we where doing! Lol

Ahhhh there is our problem mate! We wired it to number 10 air flow!

My money is on the fact that the air flow meter wire is cut and the car has gone into limp mode or running mad rich as there is no longer a signal from the air flow meter.

My money is on the fact that the air flow meter wire is cut and the car has gone into limp mode or running mad rich as there is no longer a signal from the air flow meter.

oh dear so what can I do solder that wire back in or not??

Like I said before mate check the ecu wires that we cut, make sure they have a good connection ( buy yourself a cheep solder iron and solder the wires back together and take them daft cheep crimpt connectors off)

 

lol at least ash was praising you mate lol..

we were testing the car and doing vac leaks, plug and clip checks.. checking second turbo..

we were like you sure the FCD is fitted ok ? he was like NOPE the FCD is fitted correctly lol...

anyway we swapped a few wires at end of the day as some were wrong but ash said it still felt sluggish..

you may want to check what yous have cut and retrace your FCD install.

we ran out of time today..

retrace this and if that dont sort it look at pump.

oh dear so what can I do solder that wire back in or not??

rejoin it mate ;-)

oh dear so what can I do solder that wire back in or not??

Is the wire just cut? in which case solder them back together and put some heat shrink/ insulating tape over it and it should be fine

lol at least ash was praising you mate lol..

 

we were testing the car and doing vac leaks, plug and clip checks.. checking second turbo..

 

we were like you sure the FCD is fitted ok ? he was like NOPE the FCD is fitted correctly lol...

 

anyway we swapped a few wires at end of the day as some were wrong but ash said it still felt sluggish..

 

you may want to check what yous have cut and retrace your FCD install.

 

we ran out of time today..

 

retrace this and if that dont sort it look at pump.

Did you re-wire the FCD in as I have stated above Jurgen? Just wanted to check we did the same thing

oh dear so what can I do solder that wire back in or not??

If your not sure you can solder the wire back on for the ECU I would suggest you should not be messing about with wires round the ECU harness, very easy to damage stuff when you dont know wht your doing

If your not sure you can solder the wire back on for the ECU I would suggest you should not be messing about with wires round the ECU harness, very easy to damage stuff when you dont know wht your doing

Have to agree, this could have all been avoided if done properly the first time, always get a specialist to do it or seek the right info on here first. I trawled the forum for days getting the right info on the vvti ecu and had advice from Chris Wilson before even thinking of fitting the FCD.

lol at least ash was praising you mate lol..

 

we were testing the car and doing vac leaks, plug and clip checks.. checking second turbo..

 

we were like you sure the FCD is fitted ok ? he was like NOPE the FCD is fitted correctly lol...

 

anyway we swapped a few wires at end of the day as some were wrong but ash said it still felt sluggish..

 

you may want to check what yous have cut and retrace your FCD install.

 

we ran out of time today..

 

retrace this and if that dont sort it look at pump.

lol at least ash was praising you mate lol..

 

we were testing the car and doing vac leaks, plug and clip checks.. checking second turbo..

 

we were like you sure the FCD is fitted ok ? he was like NOPE the FCD is fitted correctly lol...

 

anyway we swapped a few wires at end of the day as some were wrong but ash said it still felt sluggish..

 

you may want to check what yous have cut and retrace your FCD install.

I told him I didnt have a clue when I first saw it mate lol he also didn't have a clue I don't know why we even attempted it lol

After we wired it up he took it for a quick test drive to see if it got fuel cut and he said it hit 1.2 bar with no fuel cut so that's why he thinks we hit the correct wires lol

We are just pure amateurs pmsl

Did you re-wire the FCD in as I have stated above Jurgen? Just wanted to check we did the same thing

my brother had to redo it as it was wired in wrong am sure we wired like yours

Is the wire just cut? in which case solder them back together and put some heat shrink/ insulating tape over it and it should be fine

surley cutting this wire thow and putting it back together is not going to solve the problem as it is connected back together just not soldered...

or soldering giving it 100% more current?

Have to agree, this could have all been avoided if done properly the first time, always get a specialist to do it or seek the right info on here first. I trawled the forum for days getting the right info on the vvti ecu and had advice from Chris Wilson before even thinking of fitting the FCD.

lol, poor ash (we told him same today)..

hopefully no damage has been done..

I told him I didnt have a clue when I first saw it mate lol he also didn't have a clue I don't know why we even attempted it lol

After we wired it up he took it for a quick test drive to see if it got fuel cut and he said it hit 1.2 bar with no fuel cut so that's why he thinks we hit the correct wires lol

 

We are just pure amateurs pmsl

it was in good intentions am sure..

one of them was wired to 3rd injector signal lol

surley cutting this wire thow and putting it back together is not going to solve the problem as it is connected back together just not soldered...

 

or soldering giving it 100% more current?

How is it currently connected? the air flow meter will send a very accurate signal to the ecu so any resistance from a bad connection could throw everything out. 100% solder it mate and see how you get on.

surley cutting this wire thow and putting it back together is not going to solve the problem as it is connected back together just not soldered...

 

or soldering giving it 100% more current?

double check the FCD yourself tomorrow or pop in to mine just for quick look (as we flat out again lol)..

as we checked this last on the day (there might be a bad wire, somewere that you have cut and not joined properly.)

could be something as simple as that mate.

it was in good intentions am sure..

 

one of them was wired to 3rd injector signal lol

DOHhhhhhh! I kept telling ash " I bet it's the FCD causing the problem"

See when I wired in my e-manage I spent months reading up on it. But when ask asked me to give him a hand he came with the wrong ecu pin outs lol so we spent around 45mins trying to work it out and searching for the right one lol.