My experience with DTC P061b

paco_pony · 04-11-2007, 08:57 PM

Thought I would share my experience with this as some research on other forums yielded inconclusive answers. If this is common knowledge then please forgive me and ignore me (in that order, please).

I've been driving my new NA stroker around (no power adder but stroked guts, ported heads and cams) and all of a sudden it started going in to limp mode and throwing a check engine light. The scanner said P061b--the text around it is something like "torque calculation error". No other codes were thrown.

Some quick forum searches showed folks with similar problems-- a lot with blowers and a few with bolt on parts. But no conclusive answers about what the problem is and what the fix might be.

So I took the car in. One quick call to SCT from the shop owner and the problem was identified. An email with a patch to the tune was the solution. Loaded it up within 20 minutes and I'm good to go. No more trouble codes and car runs great.

The best I can tell is that the ECM measures engine load (ie, "torque") along with several other variables to figure out the right injector pulse width. If the ECM detects that the engine is under more torque or load than a stock engine should be (e.g., with a blower or aggressive bolt ons) then the ECM will throw this code and send the car into limp mode.

There is an easy fix for this in the tune--but not all tuners know about it. They just have to get the patch from the tuner co.

Anyway, hope this is somewhat worthwhile to someone.

Later...

**ZmanM3** · 04-12-2007, 02:23 AM

Thanks for the info!!!

**1Fast05Turbo** · 04-12-2007, 08:45 AM

That's good to know. Thanks!

travelers · 04-12-2007, 12:21 PM

Good tech info on that problem, thanks

You have a stroker, what CI are you at now?

bullitt3544 · 01-06-2009, 06:51 PM

DUDE!! i have an 08 bullitt, comp stage 2 thumper cams, steeda udps, pypes shorty headers, off road "x" pipe, flowmasters and charge motion delete plates and a twin 62mm bbk throttle body

. im using a diablo sport tuner, gettin the same code EVERY TIME I DRIVE THE CAR so, you are telling me ditch diablo and call sct and its fixed? please let me know asap, thanx

**rojizostang** · 01-06-2009, 07:05 PM

Quote:

Originally Posted by bullitt3544

DUDE!! i have an 08 bullitt, comp stage 2 thumper cams, steeda udps, pypes shorty headers, off road "x" pipe, flowmasters and charge motion delete plates and a twin 62mm bbk throttle body

. im using a diablo sport tuner, gettin the same code EVERY TIME I DRIVE THE CAR so, you are telling me ditch diablo and call sct and its fixed? please let me know asap, thanx

your mods sound very similar to mine...i hope to install the cams this weekend. thanks for the heads up....hopefully bama can straighten it out for me if this occurs.

bullitt3544 · 01-06-2009, 07:17 PM

my cars got 4:10s too and a spydershaft aliminum driveshaft, eibach springs, 20 x 10s w/ 285-30-20s and 20 x 8.5s with 255-35-20s heres a few pics

04-11-2007, 08:57 PM	#1
paco_pony Member Join Date: Apr 2007 Location: Plano, TX Posts: 56 iTrader: 0 / 0%	My experience with DTC P061b Thought I would share my experience with this as some research on other forums yielded inconclusive answers. If this is common knowledge then please forgive me and ignore me (in that order, please). I've been driving my new NA stroker around (no power adder but stroked guts, ported heads and cams) and all of a sudden it started going in to limp mode and throwing a check engine light. The scanner said P061b--the text around it is something like "torque calculation error". No other codes were thrown. Some quick forum searches showed folks with similar problems-- a lot with blowers and a few with bolt on parts. But no conclusive answers about what the problem is and what the fix might be. So I took the car in. One quick call to SCT from the shop owner and the problem was identified. An email with a patch to the tune was the solution. Loaded it up within 20 minutes and I'm good to go. No more trouble codes and car runs great. The best I can tell is that the ECM measures engine load (ie, "torque") along with several other variables to figure out the right injector pulse width. If the ECM detects that the engine is under more torque or load than a stock engine should be (e.g., with a blower or aggressive bolt ons) then the ECM will throw this code and send the car into limp mode. There is an easy fix for this in the tune--but not all tuners know about it. They just have to get the patch from the tuner co. Anyway, hope this is somewhat worthwhile to someone. Later...

04-12-2007, 02:23 AM	#2
ZmanM3 The Evil One Join Date: Apr 2007 Location: St. Robert, MO Posts: 12,320 iTrader: 20 / 95%	Thanks for the info!!! __________________ 05 - Saleen S/C, Saleen suspension, 2.95" pulley, Livernois heads, Thrump_rrr tensioner etc. http://www.fquick.com/ZmanM3

04-12-2007, 08:45 AM	#3
1Fast05Turbo Giggity Giggity Goo Join Date: Apr 2007 Location: Valrico, FL Posts: 1,210 iTrader: 1 / 100%	That's good to know. Thanks! __________________ http://www.myslips.com/eslip/2005turboGT.jpg 2005 GT Turbo - "Cujo" http://img.photobucket.com/albums/v6...1m_8d4da52.jpg

04-12-2007, 12:21 PM	#4
travelers Senior Member Join Date: Apr 2007 Location: Eastern Pa Posts: 1,006 iTrader: 0 / 0%	Good tech info on that problem, thanks You have a stroker, what CI are you at now? __________________ 07 Redfire GT C&L Racer CAI/SCT XCAL2/Sequential Turn Signals/GTA Mufflers/Steeda UDP/ CHE K Member Brace W/Torque Links/Steed Air/Oil Separator/PRO 50 Shifter/J&M LCA/Spider D/S /Meziere Elect. O2 pump/AHR Long Tube Headers Catted H Pipe/Prothane MM/Boss 429 Hood Scoop/Ducktail Spoiler/Tokico D-spec/Steeda Adj Pantard Bar/CHE Pantard Bar Brace & Adj UCA/BMR UCA Mount F&R Sway Bars Tillman Speed Dyno Tune 307 rwhp & 322 rwtq

01-06-2009, 06:51 PM	#5
bullitt3544 Junior Member Join Date: Jan 2009 Posts: 14 iTrader: 0 / 0%	P061B DUDE!! i have an 08 bullitt, comp stage 2 thumper cams, steeda udps, pypes shorty headers, off road "x" pipe, flowmasters and charge motion delete plates and a twin 62mm bbk throttle body. im using a diablo sport tuner, gettin the same code EVERY TIME I DRIVE THE CAR so, you are telling me ditch diablo and call sct and its fixed? please let me know asap, thanx

01-06-2009, 07:17 PM	#7
bullitt3544 Junior Member Join Date: Jan 2009 Posts: 14 iTrader: 0 / 0%	i almost 4got my cars got 4:10s too and a spydershaft aliminum driveshaft, eibach springs, 20 x 10s w/ 285-30-20s and 20 x 8.5s with 255-35-20s heres a few pics

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