Turbo Or Ecu

[khunjeng]

hi guys...

last night I was driving, gave it a bit, but not heaps and suddenly lost all boost and power. No noise.It seemed wierd, I had no flutter anymore...wans't sure what was going on, I assumed I blew a hose off the FMIC or the BOV.

Anyway everything seemed fine. In the morning a did some close inspections, nothing seemed wrong..I pulled of some hoses and had a look and checked the BOV and bleed valve for the boost - looks good.

Took it for a spin...drove ok until you hit like 0.3bar+ def. was spooling and I could here pressure being released..so I guessed the turbo is working - to some degree.

Currently I have an emanage in the car as my PFC will be installed in 1 week. ITs been running fine. But I did an ECU reset, connected back up to the stock boost solanoid and took it for a spin...boosts up to 0.5bar ok..but whent he revs hit about 4k...just dies in the arse...felt like it was dumping lots of fuel...in fact watching the guage it seemed to move down a lot in the process..I didn't notice smoke..but i didn't really look either.

I put my ear to the turbo and it doens't appear to be making any funny noises...you can hear it spinning at idle...and u can hear it spool under some load.

My guess is the emanage is f*ked..or f*king with the ECU...it seems like its being retarded as under some load u can feel it isn't pulling like normal and is running at say 1/2 thottle..

I'm worried I screwed the turbo...but its a new steel/bb type...good for 700hp aparently and I had been running 1-1.2 bar for some time before this. ... Was thinking of taking off the cat to see if any bits are there but cbf right at the minute..

Any susgestions of any things I should check to rule out the turbo?

I did a search on blown turbos and it didn't apear to fit any of the symtoms...seemed more like a hose it blown but I looked a few times and took most of them off for inspection. AFM is a few months odl also.

[paulr33]

does the emanage save its settings in nvram (one would assume so).

do u have the emanage software + cable? can you check its program/tune is still present. sounds like u might be hitting r&r protection from the stock ecu, perhaps the emanage settings have been reset so now its hitting the stock r&r on the stock ecu

[R31Nismoid]

Feel like driving to my place Mon night?

Or wait till Thurs

i'll work it out for ya if your still having issues.

Sounds like the emanage isnt doing its job though and intercepting it

[cameron]

What BOV do you have?

Turbo wont be broken if its steel wheel.

Edited October 21, 2006 by cameron

[khunjeng]

Feel like driving to my place Mon night?

Or wait till Thurs

i'll work it out for ya if your still having issues.

Sounds like the emanage isnt doing its job though and intercepting it

thanks Paul & Ash...

I kept loking at stuff but didn't get anywhere and justed working on the FTO instead...which now has nice new ATF after spilling the shit everywhere..

BOV = stock...seemed to be working when I took it off but I don't have much to compare it to.

I havn't got the cable etc...I left it at my tuners..cos I didn't get the software....basically cos I was upgrading to the PFC anyway.

I'm pretty sure your right and hitting R&R...cos it feels ghey..dunno why it just hit it in the middle of driving though? But I did find it acting wierd earlier in the day when I cained it it went but not fast enough...

if u send me ur details, I'II make the trip and see if u can suss it out...then u can check my new rims..hehe

[paulr33]

the new turbo will change the airflow patterns dramatically compare to the stock ecu. the r&r is based on airflow at certain levels, so as the engine comes on load more airflow comes than the ecu thinks is acceptable so it activates its self protection to make sure things are safe

you can turn the boost way down but depending on what actuator you have it might not help, ie if its a 12psi actuator you will probably still hit it

[khunjeng]

the new turbo will change the airflow patterns dramatically compare to the stock ecu. the r&r is based on airflow at certain levels, so as the engine comes on load more airflow comes than the ecu thinks is acceptable so it activates its self protection to make sure things are safe

you can turn the boost way down but depending on what actuator you have it might not help, ie if its a 12psi actuator you will probably still hit it

yeah it makes sense. The setup was tuned as is...for the past few months it was fine

Cos I wanted to elimintae the bleed value I put it back to the stock solanoid. This did help, hit 0.5 pretty quick cos of the new turbo but as the REVs picked up it eventually cut...i.e. what u said above. I might put the bleed value back on and turn it down alot to make it drive normal and take it to Ash's and see what the deal is..

[R31Nismoid]

Paul is usually close by if he is staying @ his mrs... im sure between 3 of us, a couple of beers.. we'll work it out

[paulr33]

yeah try it, but if its got a 1 bar actuator on it then u cant run less than this

[khunjeng]

I went to see GTR Geoff today and he took a look at it and went for a spin. He reckons it feels like its being restricted..i.e. maybe the emanage is f*king with it as suspected...we also though mayeb the fuel pump was doing dodgy things...

I think the best bet is to advance my PFC install and go form there. I will talk to my guys tomorrow...really annoying.

thanks for the help....