CEL after supercharger install
Thread Starter
Burning Brakes
Joined: Mar 2014
Posts: 1,064
Likes: 152
CEL after supercharger install
Ok... Last week I picked up my newly supercharged car. All was right in my world on the drive home. Next day, drove it to work, no problems. Started it to come home, CEL illuminated. WTF?!?!?! I go buy a code reader after I discussed with tuner, it's a generic code P2230, barometric pressure sensor erratic. Sidebar, the oil temp gauge isn't working either, curious if anyone knows what could've happened with that as well? No one seems to know why the oil temp gauge isn't working now, but it isn't and it should be!!!
I would like some help from anyone who might know why I'm throwing this P2230 code everyday now? I've reset the CEL daily for the past couple of days, and I gotta tell ya, I'm stressed out about it. The tuner doesn't think it's a big deal... I DO!!! I've reached out to Andy at A&A as well, waiting for a reply from him. Please, if anyone can help, I would greatly appreciate it.
I would like some help from anyone who might know why I'm throwing this P2230 code everyday now? I've reset the CEL daily for the past couple of days, and I gotta tell ya, I'm stressed out about it. The tuner doesn't think it's a big deal... I DO!!! I've reached out to Andy at A&A as well, waiting for a reply from him. Please, if anyone can help, I would greatly appreciate it.
Le Mans Master
Joined: Mar 2010
Posts: 7,049
Likes: 945
From: DFW TX
Exact same thing happened to my car like 5 minutes after I picked it up. My tuner made a quick tune change and it cleared up. Talk to Andy. It's a simple fix and your tuner needs to fix it. It's basically an error because of an increase of pressure obviously.
Also the oil temp thing I had a similar issue as well. Shoot me a pm and we can maybe chat over the phone.
Also the oil temp thing I had a similar issue as well. Shoot me a pm and we can maybe chat over the phone.
Race Director
Joined: Jul 2007
Posts: 10,961
Likes: 2,643
From: Texas Hill Country
I had a codes for Baro and Random Misfire AND my oil temp gauge didn't work after I installed my headers and AFE intake.
Problem.....I plugged my O2 sensors into the wrong sides. Switched them back and all is good.
Usually when the Baro code comes up and the O2 sensors are correct the code either needs to be disabled or the range of error increased in the tune. I really doubt you have a mechanical issue.
The MAF holds the sensor for airmass, intake air temp, and barometric pressure.
Problem.....I plugged my O2 sensors into the wrong sides. Switched them back and all is good.
Usually when the Baro code comes up and the O2 sensors are correct the code either needs to be disabled or the range of error increased in the tune. I really doubt you have a mechanical issue.
The MAF holds the sensor for airmass, intake air temp, and barometric pressure.
Thread Starter
Burning Brakes
Joined: Mar 2014
Posts: 1,064
Likes: 152
I had a codes for Baro and Random Misfire AND my oil temp gauge didn't work after I installed my headers and AFE intake.
Problem.....I plugged my O2 sensors into the wrong sides. Switched them back and all is good.
Usually when the Baro code comes up and the O2 sensors are correct the code either needs to be disabled or the range of error increased in the tune. I really doubt you have a mechanical issue.
The MAF holds the sensor for airmass, intake air temp, and barometric pressure.
Problem.....I plugged my O2 sensors into the wrong sides. Switched them back and all is good.
Usually when the Baro code comes up and the O2 sensors are correct the code either needs to be disabled or the range of error increased in the tune. I really doubt you have a mechanical issue.
The MAF holds the sensor for airmass, intake air temp, and barometric pressure.
Pro
Joined: Nov 2014
Posts: 687
Likes: 83
From: Fort Worth Texas
Hey! Get that car of yours back down to the tuner and be sure to have it back soon. I'm itching to get together after mine gets back from LG Motorsports, to do a photo shoot with ya. What's better than ONE supercharged C7? TWO supercharged C7's.. LOL!
Thread Starter
Burning Brakes
Joined: Mar 2014
Posts: 1,064
Likes: 152
You know it!!! Yeah, I'm discovering it's a minor issue that doesn't effect the drivability so I'm calming down a little. I can't wait to see your car after it gets back from LG! Should be a beast. Absolutely looking forward to our photo shoot.
Melting Slicks
Joined: Jan 2011
Posts: 2,195
Likes: 19
How many miles after the install did it take to trigger the CEL? So you contacted the tuner at the shop that installed the supercharger, and they cannot rectify it, or you have not taken it in as of yet? Please keep us posted on what Andy says. Thanks!
Thread Starter
Burning Brakes
Joined: Mar 2014
Posts: 1,064
Likes: 152
Got an email from the tuner and Andy both today... Problem is going to be rectified by turning off the bit in the pcm. As for the loss of oil temp reading... Well that's still the great mystery.
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Melting Slicks
Joined: Jan 2011
Posts: 2,195
Likes: 19
Thanks. What is the "bit" in the PCM? How many miles did it take to trigger the CEL after the install? I assume that they maybe did not connect the oil temp. sensor after the install? To me that is a huge thing, because I always monitor both my oil and coolant temps.
Thread Starter
Burning Brakes
Joined: Mar 2014
Posts: 1,064
Likes: 152
I was told they just need to disable the map sensor/barometric pressure sensor in the pcm. As far as the oil temp sensor not working, that's s big deal to me too. I'm super **** about all my stuff working on my car, especially since it's a fairly new car. 12k miles. It's a process... I'll get it corrected.
Race Director
Joined: Jul 2007
Posts: 10,961
Likes: 2,643
From: Texas Hill Country
The oil temp sensor reading is somehow correlated to the Baro code. It should start working again once that code is cleared.
BTW, they don't disable the sensor, just the error code reporting.
BTW, they don't disable the sensor, just the error code reporting.
^^^Higgs always comes to the rescue...
Thread Starter
Burning Brakes
Joined: Mar 2014
Posts: 1,064
Likes: 152
Clear as mud. Ha! Again, thank you for the info and clarification. Much appreciated
Thread Starter
Burning Brakes
Joined: Mar 2014
Posts: 1,064
Likes: 152
Cel
I got the barometric pressure sensor code cleared permanently today, however, the oil temp gauge still isn't working! WTF? I can't figure out why adding a supercharger and tune causes gauges to stop working? Anyway, still looking for an answer if anyone has an idea. Btw... I called the dealer to see if there was a software update to rectify this lil snafu and they say nothing they know of. Thanks in advance for any ideas or info.
Race Director
Joined: Jul 2007
Posts: 10,961
Likes: 2,643
From: Texas Hill Country
I got the barometric pressure sensor code cleared permanently today, however, the oil temp gauge still isn't working! WTF? I can't figure out why adding a supercharger and tune causes gauges to stop working? Anyway, still looking for an answer if anyone has an idea. Btw... I called the dealer to see if there was a software update to rectify this lil snafu and they say nothing they know of. Thanks in advance for any ideas or info.
sorry to hear it didn't start working, mine stopped until I fixed my code.
Melting Slicks
Joined: Jan 2011
Posts: 2,195
Likes: 19
I got the barometric pressure sensor code cleared permanently today, however, the oil temp gauge still isn't working! WTF? I can't figure out why adding a supercharger and tune causes gauges to stop working? Anyway, still looking for an answer if anyone has an idea. Btw... I called the dealer to see if there was a software update to rectify this lil snafu and they say nothing they know of. Thanks in advance for any ideas or info.
Thread Starter
Burning Brakes
Joined: Mar 2014
Posts: 1,064
Likes: 152
time to start checking your sensor plugs on the harness. get a flashlight and poke around. you can also try disconnecting your battery in your trunk overnight or if you know how to drain power from the system (not the battery) with it disconnected do that. you can ground the system.
sorry to hear it didn't start working, mine stopped until I fixed my code.
sorry to hear it didn't start working, mine stopped until I fixed my code.
Le Mans Master
Joined: Mar 2010
Posts: 7,049
Likes: 945
From: DFW TX
I was gonna actually pm you... You seem to have a very good grasp on the issue. I have disconnected to battery, checked the oil pressure sensor and pigtail located on the passenger side of the sump/oil pan, and also checked the fuse (#39) for that function. I'm at a loss here.
https://www.corvetteforum.com/forums/c7-tech-performance/3615690-oil-pressure.html
Thread Starter
Burning Brakes
Joined: Mar 2014
Posts: 1,064
Likes: 152
Hey dude. You say you checked the oil pressure sensor? Assuming you meant the oil temp sensor? My question is are they one of the same? Or are they different, because take a look at my thread below. This is the oil pressure sensor I had issues with and ended up having to replace. If you're confident you know where the oil temp sensor is just replace it. This oil pressure sensor was a $35 part. Great news about getting the cel cleared.
https://www.corvetteforum.com/forums/c7-tech-performance/3615690-oil-pressure.html
https://www.corvetteforum.com/forums/c7-tech-performance/3615690-oil-pressure.html