Engine Power is Reduced: Annoying - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Rogan · 07-21-2012, 10:36 PM

Code p0601 is what comes up after I get it start.

I've had a tune on her for about 7 months now. Did about 5 Road Course events with no issues. It's been months since I've done any Road Course events.

Last Thursday she shutdown at a light. That day I had put gas in from a gas station I never used before. That same day(morning) I drove through some puddles that sprayed pretty hard under my car. Was wondering if one or both of those incidents could have caused the problem.

After she shuts down I would have to wait a few minutes for her to start. 5 to 10 minutes. I don't know if taking the key out allows it to turn back on faster. Anyway Engine Power is Reduced pops up and the car shutsdown. She'd come back on after a few minutes with the engine light. The code according to my scanner(obd2 & droid app) is p0601. I would drive her with no issues while the engine light is on. However when the engine light goes away eventually the problem returns.

I checked the connections to the throttle body and intake and visually everything looks good. I pulled the big fuses under the hood as well. Dealers may trip on the tune so I'm trying to see if there is something I can fix.

The car drives fine with or without the engine light on....no difference in feel power wise.

Any ideas.

tomlink · 07-21-2012, 10:50 PM

P0601 says the ECM needs to be replaced. I hope yours is still under warranty.

MARINE1991 · 07-21-2012, 10:53 PM

they will fix it but you will have to pay for it...

Rogan · 07-21-2012, 10:57 PM

Quote:

Originally Posted by tomlink

P0601 says the ECM needs to be replaced. I hope yours is still under warranty.

Were did you find that?

Quote:

Originally Posted by MARINE1991

they will fix it but you will have to pay for it...

So they are going to trip on the tune and headers.

Rogan · 07-21-2012, 11:03 PM

Did some reading and it seems some who just changed the PCM had the problem return.

Cam2011 · 07-21-2012, 11:33 PM

Quote:

Originally Posted by Rogan

So they are going to trip on the tune and headers.

More than likely, they frown on replacing parts that could have been affected by a tune. No need to flash it back either, they'll know that too.

Rogan · 07-21-2012, 11:46 PM

Quote:

Originally Posted by Cam2011

More than likely, they frown on replacing parts that could have been affected by a tune. No need to flash it back either, they'll know that too.

Might just go to the guys who put the tune. I can order the PCM from gmpartsdirect for 156.00. I will call them on Monday.

Rogan · 07-22-2012, 12:16 PM

I unplugged the PCM, the MAF and throttle body connections and sprayed electrical cleaner. I ran through some puddles hard the same day this happened. I remember on my M35 while I had my computer go bad because of under spray of water from a car wash. I'm thinking this must have happened to my ss as well but not as bad of problem. Pulled a few fuses as well and letting it sit for a few hours. Fingers are crossed. Loaded up with gas from where I regularly go and put seafoam in as well. Will let the car sit for a while to see if the problem returns.

Some had this happen for bad gas, gas cap not on properly or the spring the cap went bad, fuel station loading up gas while putting gas in their car or moisture. Same day I put gas and the same day I drove through puddles pretty hard. Hoping is just one of the two that caused the issue.

jd10013 · 07-22-2012, 12:40 PM

Quote:

Originally Posted by Rogan

Some had this happen for bad gas, gas cap not on properly or the spring the cap went bad, fuel station loading up gas while putting gas in their car or moisture. Same day I put gas and the same day I drove through puddles pretty hard. Hoping is just one of the two that caused the issue.

I doubt gas is the problem. all the gas stations pretty much get their gas from the same places (wholesalers), only the additives change. on top of that, there are filters on the tanks, the pumps, and in your car. it's highly unlikely enough water made it into your fuel system to stop the car completely. and leaving your gas cap off entirely wouldn't cause those problems. that just triggers the check engine light to alert you to a leak in the vapor recovery system. its pretty much telling you fuel vapor is escaping into the atmosphere which keeps the tree huggers from sleeping at night.

personally, I'd take it somewhere and spend the 50-100 in diagnostic time to find out exactly what is wrong with it. it can get pretty expensive just replacing parts hoping it takes care of the problem.

Rogan · 07-22-2012, 12:46 PM

Quote:

Originally Posted by jd10013

personally, I'd take it somewhere and spend the 50-100 in diagnostic time to find out exactly what is wrong with it. it can get pretty expensive just replacing parts hoping it takes care of the problem.

Will do that if I what I've done doesn't correct the issue. What I've done can't hurt I guess. However underspray from a car wash screwed up my m35 ecm - so I don't put it pass the water.

jd10013 · 07-22-2012, 12:46 PM

Quote:

Originally Posted by Rogan

Might just go to the guys who put the tune. I can order the PCM from gmpartsdirect for 156.00. I will call them on Monday.

you'll probably have to take it to the dealership to get it programmed too.

atver22 · 07-22-2012, 12:48 PM

Got the same code on mine last year. It was an ECM replacement all the way. Thank god i hadnt tuned it yet so they covered it.

Rogan · 07-22-2012, 12:51 PM

Quote:

Originally Posted by jd10013

you'll probably have to take it to the dealership to get it programmed too.

Yeah I did some reading and it appears I'd have to see them regardless if the issue returns. I just don't believe in coincidence too much. For me to have gone to a gas station I never used and to have driven through several deeps puddles and have the puddles splash pretty hard under the car makes me think its one or the other.

And in my Vette I'd go to one station and she'd run weird - turn around and go to another on the same street and she'd run fine. I went back and forth on this for months to see if the station was the problem and it was. Who knows if I was really getting 93 octane.

Rogan · 07-22-2012, 12:53 PM

Quote:

Originally Posted by atver22

Got the same code on mine last year. It was an ECM replacement all the way. Thank god i hadnt tuned it yet so they covered it.

Lucky indeed. I'm gonna order one from gmpartsdirect for 156 if this issue remains after going through my tank of gas.

07-21-2012, 10:36 PM	#1
Rogan No Pain No Gain Drives: Yellow 5th Gen 2SS RS Join Date: Aug 2009 Location: GA Posts: 1,519	Engine Power is Reduced: Annoying Code p0601 is what comes up after I get it start. I've had a tune on her for about 7 months now. Did about 5 Road Course events with no issues. It's been months since I've done any Road Course events. Last Thursday she shutdown at a light. That day I had put gas in from a gas station I never used before. That same day(morning) I drove through some puddles that sprayed pretty hard under my car. Was wondering if one or both of those incidents could have caused the problem. After she shuts down I would have to wait a few minutes for her to start. 5 to 10 minutes. I don't know if taking the key out allows it to turn back on faster. Anyway Engine Power is Reduced pops up and the car shutsdown. She'd come back on after a few minutes with the engine light. The code according to my scanner(obd2 & droid app) is p0601. I would drive her with no issues while the engine light is on. However when the engine light goes away eventually the problem returns. I checked the connections to the throttle body and intake and visually everything looks good. I pulled the big fuses under the hood as well. Dealers may trip on the tune so I'm trying to see if there is something I can fix. The car drives fine with or without the engine light on....no difference in feel power wise. Any ideas. __________________ 2010 2SS/RS/L99 - Headers/CAI/SWAYs/CoilOvers/Tune/Steel Braided Brake Lines/Frozen Slotted Rotors Last edited by Rogan; 07-22-2012 at 10:57 PM.

07-21-2012, 11:03 PM	#5
Rogan No Pain No Gain Drives: Yellow 5th Gen 2SS RS Join Date: Aug 2009 Location: GA Posts: 1,519	Did some reading and it seems some who just changed the PCM had the problem return. __________________ 2010 2SS/RS/L99 - Headers/CAI/SWAYs/CoilOvers/Tune/Steel Braided Brake Lines/Frozen Slotted Rotors

07-22-2012, 12:16 PM	#8
Rogan No Pain No Gain Drives: Yellow 5th Gen 2SS RS Join Date: Aug 2009 Location: GA Posts: 1,519	I unplugged the PCM, the MAF and throttle body connections and sprayed electrical cleaner. I ran through some puddles hard the same day this happened. I remember on my M35 while I had my computer go bad because of under spray of water from a car wash. I'm thinking this must have happened to my ss as well but not as bad of problem. Pulled a few fuses as well and letting it sit for a few hours. Fingers are crossed. Loaded up with gas from where I regularly go and put seafoam in as well. Will let the car sit for a while to see if the problem returns. Some had this happen for bad gas, gas cap not on properly or the spring the cap went bad, fuel station loading up gas while putting gas in their car or moisture. Same day I put gas and the same day I drove through puddles pretty hard. Hoping is just one of the two that caused the issue. __________________ 2010 2SS/RS/L99 - Headers/CAI/SWAYs/CoilOvers/Tune/Steel Braided Brake Lines/Frozen Slotted Rotors

07-21-2012, 10:50 PM	#2
tomlink Drives: 2011 Camaro 2LT RS Join Date: Apr 2011 Location: New Bern, NC Posts: 953 View My Garage	P0601 says the ECM needs to be replaced. I hope yours is still under warranty.

07-21-2012, 10:53 PM	#3
MARINE1991 Drives: COTW 8/29/11 2010 CAMARO Join Date: Jul 2009 Location: HOMELESS Posts: 10,010 View My Garage	they will fix it but you will have to pay for it...

07-22-2012, 12:48 PM	#12
atver22 Drives: 2011 2SS/RS Synergy Green Join Date: Jun 2011 Location: Sun Prairie, WI Posts: 104	Got the same code on mine last year. It was an ECM replacement all the way. Thank god i hadnt tuned it yet so they covered it.