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Error code - P2096

19K views 5 replies 5 participants last post by  jeepgcoman 
#1 ·
Got this error code and I'm stumped. I've managed to figure out what the code means but not how to solve it. I was in NJ the other night and decided to take advantage of the cheaper gas prices...my mistake...I'm driving home prob about 60 miles after fueling up and the damn check engine light comes on. I'm hoping it's just contaminated fuel from the Getty station in NJ but I'm not banking on it. Chances are its the O2 sensor (just my luck, can't be anything easy). Anyway, I've added the sea foam fuel additive to attempt to "clean" up the remaining 1/4 tank of gas I have left before I add fresh fuel to the tank just in case I get lucky. My question is which of the O2 sensors do I replace if it's not the fuel (the autoparts store said there are 4)? Does anyone have the part #s?
The engine is running completely normal, have no exhaust leak & the gas cap is good. It's the 5.7l hemi and only has 48,667 miles on it in a 2006 grand Cherokee limited. I always thought the O2 sensors lasted till roughly 80,000-100,000 miles?
 
#3 ·
Thanks Drew! Lady luck was on my side this morning...filled up 12 gallons with 93 octane and the check engine light turned off. I guess the fresh fuel with the fuel treatment i added last night did the trick!
 
#4 ·
(1) 05 and 06 Wranglers have PCM programming problem that throws P2096 once in a while for no particular reason. Would not surprise me if Grand Cherokee's of the same era have the same problem. Good luck getting a dealer to find out if there is a Grand Cherokee version of TSB 18-028-06 (Wrangler). Anecdotal reports indicate most Wrangler owners just reset the code and keep going.

(2) Gas octane for 2010 5.7 Hemi's is 89 (it's in the manual). We tried one tank of 93 on a recent trip¹ out West and the mileage dropped from 19.7 mpg to 16.7 mpg. It took two tanks of 89 to get back to the mid-19's. Just our experience. Not to mention the extra unnecessary cost.

(3) Although it sounds logical to drive out of one's way to save a few cents per gallon, given Grand Cherokee's mpg rating with the 5.7 Hemi, it makes very little sense. My mom regularly drove her econobox 20-some miles out of her way to get gas on a regular basis for quite a while until we got enough data to prove to her on paper that she was actually spending more on the extra fuel than she was saving at the pump. Too bad you don't have a local Kwik-Fill. I've been buying my gas from them since they showed up here in New York in the mid-1980's -- the parent company goes back to 1902 I think -- and have never, ever had any fuel problems (stale, water, etc.).

Just our experience. Have a great day!
__
¹ The thruway station we pulled into only had two choices: 87 and 93. Never again. I'll drive to the next exit next time.
 
#6 ·
Got this error code and I'm stumped. I've managed to figure out what the code means but not how to solve it. I was in NJ the other night and decided to take advantage of the cheaper gas prices...my mistake...I'm driving home prob about 60 miles after fueling up and the damn check engine light comes on. I'm hoping it's just contaminated fuel from the Getty station in NJ but I'm not banking on it. Chances are its the O2 sensor (just my luck, can't be anything easy). Anyway, I've added the sea foam fuel additive to attempt to "clean" up the remaining 1/4 tank of gas I have left before I add fresh fuel to the tank just in case I get lucky. My question is which of the O2 sensors do I replace if it's not the fuel (the autoparts store said there are 4)? Does anyone have the part #s?
The engine is running completely normal, have no exhaust leak & the gas cap is good. It's the 5.7l hemi and only has 48,667 miles on it in a 2006 grand Cherokee limited. I always thought the O2 sensors lasted till roughly 80,000-100,000 miles?
It's possible that you picked up some contaminated fuel which in turn farbled up your O2 Sensors. That's just one reason you should always run top tier fuels.....no budget stuff. If indeed the O2's are contaminated, you're not going to be able to uncontaminate them. First thing I'd do is a little more troubleshooting, in particular take a look at the long and short term fuel trims to see if the O2's are somewhat doing their jobs. O2's don'[t always last 80-100K depending on many factors. I had a couple go bad at around 60K. I opted to replace them all and haven't had a problem since. Just a caution, if you're going to replace them though.....use only the OEM NTK sensors, no other brand. I made the mistake of installing Bosch ones and immediately got codes. You may want to read this thread I did years ago after my experience. I may enlighten you a little regarding the O2's.


Also, try resetting the codes a few times and see if they continue to come back. Put a high quality scanner on it and have it check ALL engine management modules for anything that may be associated....such as cam/crank sensor parameters.

Good luck and keep us posted on your findings.
 
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