two cylinders then stalls - Subaru Outback

Marion Seville · 01-17-2013, 09:02 AM

1996 outback, when coming to a stop, engine starts to knock like it is unbalanced, presumably running on two cylinders, then stalls. It will start immediately and run fine but when I come to a stop again it starts all over. When this starts I can keep the car going if i increase RPM's. but when i go there is very little power, feels like it is running on one or two cylinders. I have replaced plugs and wires. Engine light says misfire in 1 and 3. Is this a coil or something else electrical?
Help

Osei · 01-17-2013, 10:16 AM

Start with the basics.
How old are your plugs, wires?
What brand wires?

O.

Glennda5id · 01-17-2013, 10:37 AM

Sounds like a coil issue.

1 Lucky Texan · 01-17-2013, 11:19 AM

IACV? Throttlebody needs cleaning? Slipped TB?

CEL on? get the code read and post here is so.

many things could cause this problem.

Glennda5id · 01-17-2013, 11:30 AM

He said he is getting P0301 and P0303.

1 Lucky Texan · 01-17-2013, 03:13 PM

coil or slipped TB could be 'side specific' right?

Glennda5id · 01-17-2013, 03:21 PM

I agree. Unfortunately pulling the timing cover for that side of the motor requires removing the accessory belts.

I would pull the #1 plug and run the motor with the spark plug wire attached and see what the spark looks like.

Glennda5id · 01-17-2013, 03:26 PM

Then I would check the timing.

plain OM · 01-17-2013, 05:14 PM

Coil assembly triggers cylinders 1 and 2, and cylinders 3 and 4. 1 and 3 would mean that both coils inside the coil assembly are faulty. But then one might expect misfires on 2 an 4 as well.

Plugs and wires were replaced, and if there wasn't any change with this I doubt it's the type of plug or wire. (Even if the cars are sensitive, I would think that changing faulty plugs or wires should lead to different symptoms.)

1 and 3 are on the right side, so anything that is common to both left and right sides is a less likely cause.

Misfire could also be a fuel issue -- something with the right side fuel rail.

Certainly need more information about the car and engine (could it be a 2.2?) and maintenance, including TB service.

01-17-2013, 09:02 AM	#1 (permalink)
Marion Seville Registered User Join Date: Jan 2013 Posts: 1 Feedback Score: 0 reviews	two cylinders then stalls 1996 outback, when coming to a stop, engine starts to knock like it is unbalanced, presumably running on two cylinders, then stalls. It will start immediately and run fine but when I come to a stop again it starts all over. When this starts I can keep the car going if i increase RPM's. but when i go there is very little power, feels like it is running on one or two cylinders. I have replaced plugs and wires. Engine light says misfire in 1 and 3. Is this a coil or something else electrical? Help

01-17-2013, 11:19 AM	#4 (permalink)
1 Lucky Texan Registered User Join Date: Jan 2004 Location: behind the Krell Metal door Car: 03 H6 OBW & 06 WRX Sportwagon Posts: 4,405 Feedback Score: 0 reviews	IACV? Throttlebody needs cleaning? Slipped TB? CEL on? get the code read and post here is so. many things could cause this problem. __________________ Time Flies Like an Arrow, Fruit Flies Like a Banana!

01-17-2013, 03:13 PM	#6 (permalink)
1 Lucky Texan Registered User Join Date: Jan 2004 Location: behind the Krell Metal door Car: 03 H6 OBW & 06 WRX Sportwagon Posts: 4,405 Feedback Score: 0 reviews	coil or slipped TB could be 'side specific' right? __________________ Time Flies Like an Arrow, Fruit Flies Like a Banana!

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01-17-2013, 10:16 AM	#2 (permalink)
Osei Registered User Join Date: Dec 2012 Posts: 153 Feedback Score: 0 reviews	Start with the basics. How old are your plugs, wires? What brand wires? O.

01-17-2013, 10:37 AM	#3 (permalink)
Glennda5id Registered User Join Date: Mar 2010 Location: Redondo Beach CA Car: 01 Outback LL Bean Posts: 894 Feedback Score: 0 reviews	Sounds like a coil issue.

01-17-2013, 11:30 AM	#5 (permalink)
Glennda5id Registered User Join Date: Mar 2010 Location: Redondo Beach CA Car: 01 Outback LL Bean Posts: 894 Feedback Score: 0 reviews	He said he is getting P0301 and P0303.

01-17-2013, 03:21 PM	#7 (permalink)
Glennda5id Registered User Join Date: Mar 2010 Location: Redondo Beach CA Car: 01 Outback LL Bean Posts: 894 Feedback Score: 0 reviews	I agree. Unfortunately pulling the timing cover for that side of the motor requires removing the accessory belts. I would pull the #1 plug and run the motor with the spark plug wire attached and see what the spark looks like.

01-17-2013, 03:26 PM	#8 (permalink)
Glennda5id Registered User Join Date: Mar 2010 Location: Redondo Beach CA Car: 01 Outback LL Bean Posts: 894 Feedback Score: 0 reviews	Then I would check the timing.

01-17-2013, 05:14 PM	#9 (permalink)
plain OM Registered User Join Date: Jun 2006 Location: Nepean ON Canada Car: 07 OBW 2.5i Touring (SE) D-4AT Posts: 7,049 Feedback Score: 2 reviews	Coil assembly triggers cylinders 1 and 2, and cylinders 3 and 4. 1 and 3 would mean that both coils inside the coil assembly are faulty. But then one might expect misfires on 2 an 4 as well. Plugs and wires were replaced, and if there wasn't any change with this I doubt it's the type of plug or wire. (Even if the cars are sensitive, I would think that changing faulty plugs or wires should lead to different symptoms.) 1 and 3 are on the right side, so anything that is common to both left and right sides is a less likely cause. Misfire could also be a fuel issue -- something with the right side fuel rail. Certainly need more information about the car and engine (could it be a 2.2?) and maintenance, including TB service.

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