Hey guys,
I got the 6g75 in, ECU came back from steve, i start the car it needs help with the accelerator to start, once it does it revs up to 2000-2400rpm then turns off... anyone have any idea what the problem could be? ECU tune? does exactly same thing on STOCK TH ecu...

coughing alot... everything is in right - firing is from piston one 1 -3 5 on the rear bank and 2 4 6 on the front bank... just confirming this is correct?

Air mass meter not plugged in properly?

Seeing that engine still has issues with the stock TH ECU, the cause of the problem is not the tune.

Just to be sure, was the engine working correctly before you received the tune?

Is there a CEL?

CEL? so the 6g75 runs smooth with a TH ecu?
yes all sensors plugged in properly :)

Peter is doing a fresh conversion, he has not run the engine before.

Pete, have you checked MAF and injector looms are plugged in right and not corroded? Were the plugs covered during the conversion?

umm didnt check for corrosion... no plugs werent covered but car was in garage of course
il check now.

Also, manual states firing order of: 1-2-3-4-5-6. Just checking, you haven't done 1-3-5-2-4-6?

hang on - yea so piston 1 the closest piston to drivers seat - is number 1, is 2 the one beside it? and then 3 beside that so on the rear bank
1 2 3 - rear bank
4 5 6 - frpmt bank

is that wat u mean? i got
1-3-5 - rear bank
2-4-6 - front bnk

May be printed on your leads, I know mine are.

with mine its not - there bosch leads...

Hmm - does this help? I can't find the labels on the manual

http://imageshack.us/photo/my-images/109/unledyz.jpg/

hmmm cant really see where the wires are going.... i know on the dizzy its labeled 1-6 but i am starting to doubt the order which ther pluged in the motor... do you know how ur front bank is pluged in? id know from that either 456 or 246... just check the first piston on the front bank toward the driver side

Sec, I don't have my car here but I do have Zahrim's TH Sports - I'll go check it out and call you.

is that wat u mean? i got
1-3-5 - rear bank
2-4-6 - front bnk

I am 99.9% sure that this is correct.

Yes it is, just confirmed. Pete is attempting a spare dizzy and a spare maf to see what the issue is.

swapped MAF - stil same thing - cant swap dizy now its too dark i tried but just cant c a thing and the lights in garage arent gud enuf il change it tomoro but i cheked for spark thers spark.

Should the TH ecu be able to run it fine on idle... wont the compression ratio be a prb for firing?

Your firing orders ok. Sounds like an air leak, check brake booster hose, PCV hose, plenum gasket etc.

Cheers Dave

just checked all the pipes of plenum for leaks all good... :S

would Idle stepper motor do this - tehres also this soudn like a wining coming from that area - it sounds like a belt kinda - but its constant - bit like a supercharger sound...

replaced idle stepper motor - same thing. :S after i change the dizzy theres really nothing else i can think of :S :S :S and im doubting its that coz theres spark

Sure the crank angle sensor is done up right? Fully connected leads etc?

yea bro used sprocket from magna and crank angle sensor from magna... btw it wont even srtart if the crank angle sensor is rong... anyway - leads fully connected yea :) its almost as though the injector firing or spark firing is wrong... but injectors hooked up right (i numbered them wen i removed them - and checked ignition leads 1000times.

Man that sounds like an air leak, sorry to go on. O ring on the ISC was ok. T/body gasket ok. Did you change the lower manifold along with the injectors and fuel rail? I know lots of questions.

Dave just trying to help, cheers

I'd be looking at the distributor and the coil in particular. I have my distributor out at the moment, you're more than welcome to use it and see if that fixes your problem.

Wish I was in Sydney so I could come over and check what's up with your car man... Maybe get a mechanic to check it out if you cant figure it out? Would be pretty frustrating not to be able to fix it

Man that sounds like an air leak, sorry to go on. O ring on the ISC was ok. T/body gasket ok. Did you change the lower manifold along with the injectors and fuel rail? I know lots of questions.

Dave just trying to help, cheers

Thank you Dave i appreciate it :)
hmmm yea O ring on ISC was ok, T/Body is fine - i did change the lower manifold along wiht the injectors and fuel rail - lol after reading your post i want to pull it all off and put the manifolds back on just to make sure theres no leaks. I'll give that a try.

With the dizzy, caz_375 i have another one here i greatly appreciate the offer, however, it is firing fine - im told by a mechanic it wont be the dizzy because "as long as its firing it wont get the firing wrong "
not sure how true that is, but yea im gona change that today just to make sure.

LOL TJtime feels like it wil never be done !

Pete, try the dizzy. They can do some strange things - I highly recommend trying it before eliminating it from your list.

With the dizzy, caz_375 i have another one here i greatly appreciate the offer, however, it is firing fine - im told by a mechanic it wont be the dizzy because "as long as its firing it wont get the firing wrong "
not sure how true that is, but yea im gona change that today just to make sure.

I'd be trying your other distributor not because of the dizzy itself but the coil (which is built into the dizzy). The coil may be working fine under low load but break down under higher load/rpm. Pretty quick and easy job to do and if that's not the issue at least you can cross it off the list.

Probably not the issue but worth a check, have you tried a fresh battery? 'i start the car it needs help with the accelerator to start, once it does it revs up to 2000-2400rpm then turns off' sounds like a common symptom of a dying battery on the magnas. again, probably not the issue but easy to check.

Thank you all... DAVE TJ thanks every much... ok its gona sound reali stupid hope it gives some ppl a laugh though lol - there was a tiny piece of plastic looks like the end of a cabletie - imbetween the first manifold and the engine head... creating a hektic leak lol !
all good now :)

THANK YOU ALLLLLLL :) and Dave thanks !

hows the car drive man??

Great result ! I bet you feel much better and all the stress has dissipated :)

YEP ! LOL so true caz_375 :) all in - sounds sexy :) so glad i didnt need spacers :) i didnt want the exhaust coming down any further - LOL so glad i went HM headers ! :)

Thank you all... DAVE TJ thanks every much... ok its gona sound reali stupid hope it gives some ppl a laugh though lol - there was a tiny piece of plastic looks like the end of a cabletie - imbetween the first manifold and the engine head... creating a hektic leak lol !
all good now :)

THANK YOU ALLLLLLL :) and Dave thanks !

performance wise how does it go?

Agree on HM headers, I got these as well and while expensive am very happy with them.

Pyalda you'll notice a fair difference in performance.
Mine's been done about 3 weeks and on the very first drive I realised you need a good set of tyres or traction is an issue!

I've been running my old set of rims and tyres which can't cope.
Did a 0-100km/h in approx 6.8 seconds last week but that was with some wheelspin and without being able to use full throttle in first or second gears.

Will put my KU31's back on over the weekend and give it another shot next week maybe.

Glad you found it, well done for sticking at it! Now enjoy one of the most underated engines most of the world don't Know about.

Cheers Dave

Thanks all
KURT - man basicaly like Brett H said, useless in 1st and 2nd lol
Torque is a hugeeee diff - like it pulls smooth in any gear, basically - best way of sayn diff is - 2nd goes up as quick as first, 3rd as 2nd, 4th as 3rd etc.... LSD Is a must reali lol im gona drive it carefully til i can get one in...

What gearboxes are you guys running? I have only 3ltr gearboxes, so the uselessness of 1st and 2nd will be forever more useless with a shorter 1st gear and diff ratio :(

Using the standard 3.5L one... btw do diffs rattle on take off while releasing the clutch ? does that mean its reking?