Engine stalling when coming to idle/ P050B fault code.
01-03-2017, 07:56 AM
#1
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Engine stalling when coming to idle/ P050B fault code.
Hoping someone can help me figure this out.
I have a 2008 JK with automatic transmission. Ripp Supercharger.
As i'm driving and let my foot off the gas the engine will hunt just before it reaches idle (approaching a stop sign/making a turn/ slowing down) sometimes it will stall or stay running, I have noticed that it will stall more often if there is a load(i.e. going up and incline) it has stalled going into a turn. When it stalls I can put it in Neutral and bump the starter and pop it back into drive.
The check engine lamp wont come on when this happens or any warning lamps. after a couple of days the check engine lamp will come on with:
P050B - Idle air control system circuit high.
So far I have:
Smoke tested the engine through the oil cap and found no leaks,
Smoke tested the Forced induction system from the air filter and found no leaks.
Checked the engine oil level and transmission level.
Changed the spark plugs
Cleaned the throttle body
Filled with a fresh tank of fuel and added Techron.
I have cleared the code and the same symptoms will occur after several drive cycles.
I have researched the fault code and come up with nothing for JK Jeeps, only found a service bulliten for a Jeep patriot with the 4 cylinder engine.
Thanks in advance for your help.
I have a 2008 JK with automatic transmission. Ripp Supercharger.
As i'm driving and let my foot off the gas the engine will hunt just before it reaches idle (approaching a stop sign/making a turn/ slowing down) sometimes it will stall or stay running, I have noticed that it will stall more often if there is a load(i.e. going up and incline) it has stalled going into a turn. When it stalls I can put it in Neutral and bump the starter and pop it back into drive.
The check engine lamp wont come on when this happens or any warning lamps. after a couple of days the check engine lamp will come on with:
P050B - Idle air control system circuit high.
So far I have:
Smoke tested the engine through the oil cap and found no leaks,
Smoke tested the Forced induction system from the air filter and found no leaks.
Checked the engine oil level and transmission level.
Changed the spark plugs
Cleaned the throttle body
Filled with a fresh tank of fuel and added Techron.
I have cleared the code and the same symptoms will occur after several drive cycles.
I have researched the fault code and come up with nothing for JK Jeeps, only found a service bulliten for a Jeep patriot with the 4 cylinder engine.
Thanks in advance for your help.
01-04-2017, 08:17 AM
#2
Sponsoring Manufacturer
Hoping someone can help me figure this out.
I have a 2008 JK with automatic transmission. Ripp Supercharger.
As i'm driving and let my foot off the gas the engine will hunt just before it reaches idle (approaching a stop sign/making a turn/ slowing down) sometimes it will stall or stay running, I have noticed that it will stall more often if there is a load(i.e. going up and incline) it has stalled going into a turn. When it stalls I can put it in Neutral and bump the starter and pop it back into drive.
The check engine lamp wont come on when this happens or any warning lamps. after a couple of days the check engine lamp will come on with:
P050B - Idle air control system circuit high.
So far I have:
Smoke tested the engine through the oil cap and found no leaks,
Smoke tested the Forced induction system from the air filter and found no leaks.
Checked the engine oil level and transmission level.
Changed the spark plugs
Cleaned the throttle body
Filled with a fresh tank of fuel and added Techron.
I have cleared the code and the same symptoms will occur after several drive cycles.
I have researched the fault code and come up with nothing for JK Jeeps, only found a service bulliten for a Jeep patriot with the 4 cylinder engine.
Thanks in advance for your help.
I have a 2008 JK with automatic transmission. Ripp Supercharger.
As i'm driving and let my foot off the gas the engine will hunt just before it reaches idle (approaching a stop sign/making a turn/ slowing down) sometimes it will stall or stay running, I have noticed that it will stall more often if there is a load(i.e. going up and incline) it has stalled going into a turn. When it stalls I can put it in Neutral and bump the starter and pop it back into drive.
The check engine lamp wont come on when this happens or any warning lamps. after a couple of days the check engine lamp will come on with:
P050B - Idle air control system circuit high.
So far I have:
Smoke tested the engine through the oil cap and found no leaks,
Smoke tested the Forced induction system from the air filter and found no leaks.
Checked the engine oil level and transmission level.
Changed the spark plugs
Cleaned the throttle body
Filled with a fresh tank of fuel and added Techron.
I have cleared the code and the same symptoms will occur after several drive cycles.
I have researched the fault code and come up with nothing for JK Jeeps, only found a service bulliten for a Jeep patriot with the 4 cylinder engine.
Thanks in advance for your help.
Replace with a factory throttle body ONLY! We have found more problems with aftermarket/ported throttle body's with 0 gain realized on the dyno.
RIPP
01-05-2017, 04:46 AM
#3
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Makes me really happy I bought a well thought out and developed Supercharger system.
I'm surprised that there isn't more information out there on this fault/symptom.
I'm even more surprised that no one else on this forum has experienced this.
01-10-2017, 04:35 AM
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Update.
I replaced the throttle body with a factory original unit and cleared the faults.
Drove it for about 2 minutes and WHAM!! same stalling issue while driving (The fault code hasn't come back yet, but it did take a while for it to appear, so we will see)
I did notice that it will always stall when reversing into my driveway which has a slight incline.
Any ideas?
Drove it for about 2 minutes and WHAM!! same stalling issue while driving (The fault code hasn't come back yet, but it did take a while for it to appear, so we will see)
I did notice that it will always stall when reversing into my driveway which has a slight incline.
Any ideas?
Last edited by Nick-NY; 01-10-2017 at 04:41 AM.
01-19-2017, 09:54 AM
#5
Sponsoring Manufacturer
I replaced the throttle body with a factory original unit and cleared the faults.
Drove it for about 2 minutes and WHAM!! same stalling issue while driving (The fault code hasn't come back yet, but it did take a while for it to appear, so we will see)
I did notice that it will always stall when reversing into my driveway which has a slight incline.
Any ideas?
Drove it for about 2 minutes and WHAM!! same stalling issue while driving (The fault code hasn't come back yet, but it did take a while for it to appear, so we will see)
I did notice that it will always stall when reversing into my driveway which has a slight incline.
Any ideas?
RIPP
01-24-2017, 04:35 AM
#6
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but I think I have figured it out, It appears to have been a really bad tank of fuel, I ran the tank down to the low fuel lamp and refueled with premium fuel (as always) and noticed the vehicle started stalling less and less and had more power. ( I use a tank of fuel every two weeks).
Vehicle hasn't stalled in the last several days.
