Did a burnout to bring in the spring time and now it won't rev over 2500-3000rpm

[GSDKinked]

So I did this.... http://www.youtube.com/watch?v=mENAWNWEw8A and overheated but shut down quickly (i know, i screwed up) now it won't rev over 2.5k to 3k. I took the maf and tried it on another RB and it worked. Ecu is showing codes 12 and 34. I was told I could've fried the ecu, or their is a problem with maf wiring or maf or coolant temp switch.

It starts it, idles, but when i try to rev it won't go above 3000rpm.

Any and all help is greatly appreciated.

[Sil240]

Whats code 12 and 34???

Sounds like your car is in Limp mode.I would def check the MAF wiring.Try changing the Temp sensor, maybe it went bad....

[Cjmartz2k]

Overheating can cook a temp sensor, but from overheating I'd be scared of a warped/cracked head. Some other relatively easy things to try would be a compression test and looking at the plugs when you do that. Might have just fowled a plug since RB's run stupid rich stock, especially on the rev limiter. Anything weird coming out of the exhaust? Also might have cooked the piss out of a coil pack, but I don't know that I've ever seen them die from one quick overheating.

[GSDKinked]

Overheating can cook a temp sensor, but from overheating I'd be scared of a warped/cracked head. Some other relatively easy things to try would be a compression test and looking at the plugs when you do that. Might have just fowled a plug since RB's run stupid rich stock, especially on the rev limiter. Anything weird coming out of the exhaust? Also might have cooked the piss out of a coil pack, but I don't know that I've ever seen them die from one quick overheating.

Well I think i found the culprit, part of my MAF wiring was too close to the hot side of the turbo. So I removed it and ran new wires. Now it won't start, it will turn over but it wont start. My AVCR doesn't turn on and no power to the ecu and my fuel pump doesn't even prime...... So im at a complete loss.

P.S- Changed both sensors.

[Sil240]

Sounds Def like a Wiring problem .You need to chase down some loose or burnt wires

[GSDKinked]

Well as I stated before i found the burnt wire. Car atleast started and idled before. But now the diag light doesn't even go on (on the ecu), which seems like the ecu isn't getting power. Is there any visual way to check to see if the ecu is fried?

I checked the fuses and they all look to be ok. Could it be a relay causing there to be no power to the ecu?

Modified by GSDKinked at 1:11 PM 3/17/2010
Modified by GSDKinked at 1:13 PM 3/17/2010

[Yellow4g63]

Are you sure you don't have a air leak some where?

[USMCgetsome]

start with the fuses and relays then go get a multimeter and shoot for power and grounds!

[GSDKinked]

start with the fuses and relays then go get a multimeter and shoot for power and grounds!

Well I think I found the ECU problem....Top left hand corner is all burnt up. And judging from the pin out that's what reads....pins 47 to 60. So I need a new ecu so i can test if rewiring my maf worked. Anyone got an S1 or S2 ecu?

But it doesn't explain why my AVCR isn't turning on working at all...
Modified by GSDKinked at 2:12 PM 3/17/2010

[StricNyne]

i have a rb26 power fc i am letting go cheap

[GSDKinked]

i have a rb26 power fc i am letting go cheap

You have been emailed about your "cheap" powerfc haha.

[240z4u]

Is it an rb25det SII ECU? I have one that has a non functional tach output Ill set you up with cheap since you helped me out with parts in the past.

Evan

Email me direct btw, its faster.

[Cjmartz2k]

I've got a series I RB25 ecu (actually the one that went with the harness I sent to you Stricnyne) if you need one. Just shoot me an email if you needz.

[GSDKinked]

I've got a series I RB25 ecu (actually the one that went with the harness I sent to you Stricnyne) if you need one. Just shoot me an email if you needz.

Well right now the debate is between another stock ecu on this set-up and wait for nistune or use this an excuse to go powerFC and have it for this and the following motor that im building.....

[Cjmartz2k]

Power FC is mo betta You'll have to re-pin the harness from RB25 though, but it's not bad. If you want the ecu, gimme $50+ shipping and it's yours.

[RustspecS13]

I did that the first time I drove my RB20. Burnt the maf wires on the turbo exhaust housing and fried that same trace. I soldered a jumper wire to the ecu to bypass the break and it ran better than it did before.

I have about 3K miles on it since then.

~Alex

[mott6904]

Atleast you made a cool video

[GSDKinked]

I did that the first time I drove my RB20. Burnt the maf wires on the turbo exhaust housing and fried that same trace. I soldered a jumper wire to the ecu to bypass the break and it ran better than it did before.

I have about 3K miles on it since then.

~Alex

I rather have the diag light and all that than risk doing that plus I came across the deal of a lifetime.

but then again I am curious about how it looks.....do you have a picture of the ecu internals and how you did it?

Modified by GSDKinked at 8:33 AM 3/18/2010
Modified by GSDKinked at 10:49 AM 3/29/2010

[Cameron]

Atleast you made a cool video

bsaint never makes uncool videos.

[GSDKinked]

bsaint never makes uncool videos.

haha true but you don't know his early work. Bsaint is a good buddy of mine and a great videographer.

[Darius]

Nice video! The beginning of it reminded me of a GT or Forza MS opening video.

Was it only one wire that melted or more than one? It is weird that this hasn't happened prior to the burnout.

[GSDKinked]

Nice video! The beginning of it reminded me of a GT or Forza MS opening video.

Was it only one wire that melted or more than one? It is weird that this hasn't happened prior to the burnout.

yeah it was strange as hell. And theres a traced burned in the ecu pis like 46-60. So I am getting a new ECU (PowerFC for $500) and a stocker. I also traded the GT35R for a BRAND NEW AGP 48 Delta Turbo (Similar to a 3071R), it's journal bearing and flows at 48lb/min. Downside is i need to get a .63 housing and it has a .48 on it.

I think this combo should be very potent.

[GSDKinked]

Alright, bit of an update. I got a new ECU ( I will be picking up another stocker). And my avcr and etc work perfectly. Now I am just waiting to fire her up after completely draining the coolant system to get a new thermostat in there. The one I pulled was damaged and out of shape.

So once everything is topped off and bled I will test it out. And my hat goes off to Rawbrokerage again because the saved the day as per usual. Thank you guys. Can't wait to order the PFC this week.