HELP! Fuel malfunction code after CAI install

[scomaro22]

Ok so I know this should be in the exhaust section BUT I know that there are usually more people looking through here, so my dilemma is this......I got my Volant CAI and put it on the car. It was a simple install, and looks great, but less than 5 min after installing it and on the road, my computer set off a fuel malfunction code . Then, another light popped up on my dash, and my tire pressure monitor system cleared, and the car asked me if I wanted the car to re-learn ????? Huh ????? So, I assume the fuel malfunction is because of the CAI, but the other code setting off is throwing me off here. The obvious thing is to take the car to the dealership, but before I do that, any suggestions or has this happened to anyone else ???

[Ravirn]

Originally Posted by scomaro22

Ok so I know this should be in the exhaust section BUT I know that there are usually more people looking through here, so my dilemma is this......I got my Volant CAI and put it on the car. It was a simple install, and looks great, but less than 5 min after installing it and on the road, my computer set off a fuel malfunction code . Then, another light popped up on my dash, and my tire pressure monitor system cleared, and the car asked me if I wanted the car to re-learn ????? Huh ????? So, I assume the fuel malfunction is because of the CAI, but the other code setting off is throwing me off here. The obvious thing is to take the car to the dealership, but before I do that, any suggestions or has this happened to anyone else ???

I have no idea. All I know is if it transforms into a 40' tall robot and starts yelling that it needs oil... you better give it some oil!

It would help if you could tell us which codes it's giving you.

[scomaro22]

Originally Posted by Ravirn

I have no idea. All I know is if it transforms into a 40' tall robot and starts yelling that it needs oil... you better give it some oil!

It would help if you could tell us which codes it's giving you.

If that was the case, I'd def not be complaining about it

You mean like the actual number codes ??? I don't have those I just know that the malfunction icon came up (then engine block symbol ) and the exclamation point icon for service tire pressure monitor....

[steeleshark2]

Make sure your masairflow sensor is in the correct direction (it might only install in one direction only I do not remember). Verify all connections to make sure they are tight especially the breather line. Also unplug the battery for a few minutes and then retry it. Post pictures of the install and I can give it a dummy check!!

Also, what other upgrades are on your on Camaro? If it is cold, check your tire pressure, it could be just low. With it as cold as it is, you might be throwing lean codes.

[calflan]

I would pull the battery cables off to reset all and see what happens.
To reset the tire pressure, just hold the press button the left steering wheel arm (same that you scroll through odomoeter, etc.). This has happened a few times to others and you may get away with resetting fuses 5 and 20 in the fuse box (Elect Control Module), but a batt cable pull will definitely reset all. I would surely try this before going to the dealer.

[scomaro22]

Originally Posted by steeleshark2

Make sure your masairflow sensor is in the correct direction (it might only install in one direction only I do not remember). Verify all connections to make sure they are tight especially the breather line. Also unplug the battery for a few minutes and then retry it. Post pictures of the install and I can give it a dummy check!!

Also, what other upgrades are on your on Camaro? If it is cold, check your tire pressure, it could be just low.

MAF is in correctly, all the connections are tight, especially the breather line. I am posting pics in a min

[scomaro22]

Originally Posted by calflan

I would pull the battery cables off to reset all and see what happens.
To reset the tire pressure, just hold the press button the left steering wheel arm (same that you scroll through odomoeter, etc.). This has happened a few times to others and you may get away with resetting fuses 5 and 25 in the fuse box (Elect Control Module), but a batt cable pull will definitely reset all. I would surely try this before going to the dealer.

Ok cool I will try that as well. Thank you for the help. I will let you guys know how it turns out once I do it.

[calflan]

I just edited my post - it is fuses 5 and 20, not 5 and 25.

[steeleshark2]

Also, what other upgrades are on your on Camaro? If it is cold, check your tire pressure, it could be just low. With it as cold as it is, you might be throwing lean codes. Volant is a very good and open CAI and makes you run lean without any tune.

[scomaro22]

Originally Posted by calflan

I just edited my post - it is fuses 5 and 20, not 5 and 25.

O ok thanks

[scomaro22]

Originally Posted by steeleshark2

Also, what other upgrades are on your on Camaro? If it is cold, check your tire pressure, it could be just low. With it as cold as it is, you might be throwing lean codes. Volant is a very good and open CAI and makes you run lean without any tune.

Only other thing I have on there is straight pipes running back to single chamber race mufflers. Thats it. I just had a tire plugged bc of a freaking rivet that I picked up along the way But its holding, so I dunno. The pressure is 35 all around.

[steeleshark2]

Ok, on the mass airflow sensor, did you remove the little thin rectangle gasket at the base of it (where it seals against the stock intake pipe) and use the rubber seal supplied in the box. It is small and I missed it the first time I installed mine which made it install funny.

[scomaro22]

Originally Posted by steeleshark2

Ok, on the mass airflow sensor, did you remove the little thin rectangle gasket at the base of it (where it seals against the stock intake pipe) and use the rubber seal supplied in the box. It is small and I missed it the first time I installed mine which made it install funny.

Hmmmmm, now you have me thinking......I do not remember removing one, but I did use the one that was supplied......O and for some reason my USB port won't function to put the pictures up, so these will be delayed.

[steeleshark2]

If you goto your local autoparts store, call first. A lot of them will read the codes on your car for free.

[scomaro22]

Ok, I found that little gasket you were talking about. Tiny little thing it is. I fixed that, disconnected the battery, and I am going back out in a min to reconnect it, and we will see how she goes. Yea I don't know the code, but I called On-Star and had them run a diagnostic check, and the operator didn't give me a code number but said it was reading there was a fuel malfunction.

[scomaro22]

Ooooooooook, reconnected battery, computer is still bringing up the malfunction and the tire pressure monitor system........when I went to hold in the button on the end to clear the pressures, it asks if I want to re-learn the system......I am slowly getting mad

[steeleshark2]

I am about positive you are running lean. I think Madmav had lean codes pop up when it got very cold. The Diablosport Predator can fix that and give more power/better gas mileage.

I would go ahead and relearn the system.

[scomaro22]

Originally Posted by steeleshark2

I am about positive you are running lean. I think Madmav had lean codes pop up when it got very cold. The Diablosport Predator can fix that and give more power/better gas mileage.

I would go ahead and relearn the system.

Yes you are probably right. I am going to get that Predator soon. The car "re-learned" itself and nothing has changed. Unfortunately, the dealership may be getting a phone call. I know this has been talked about a million times but CAI DOES NOT void warranties right ??

[PQ]

Relearn it, AND pull the 5 and 20. Can't hurt and if the spark timing is on the low table, you'll run leaner. Could raise you to an acceptable level but you'll still want to find the problem. You should be able to run pretty lean without throwing a code. Mine dropped off the chart when I had it dynoed and never threw a code.

[PQ]

Originally Posted by scomaro22

I know this has been talked about a million times but CAI DOES NOT void warranties right ??

Depends on the set-up. Did you try putting the stock intake back on to see if it ran normal? Maybe try that and if the codes still are there then take it in with the original.

[scomaro22]

Ok pulled 5 and 20, ill put em back in and relearn it. No I havent put the stock intake back in yet to see. I figured that would be one of the next steps if this continues

[calflan]

Really should'nt need to pull 5 and 20 AND battery cables. Same effect. Pulling 5 and 20 removes power from the ECM, without having to reset all other paramaters / selections (radio, tires, etc.). If you removed the battery cable, you basically did the same AND MORE as pulling 5 and 20.
Don't be nervous about relearning tire pressures, it takes a few minutes but is no big deal. The system just checks with the pressure transducers and updates the pressures.
What is your pressure now - prior to reset ? Who did the tire patch ? If it was a shop that may have messed with the schrader valve (fill valve) then your transducer for the tire pressure may be damaged and the system simply cannot get a pressure from that tire/wheel and is posting a fault. If the valve is damaged, you'll need a new one put on. Again, not a big deal, but not something you can do either.
If the pressure is low prior to reset, that's the problem. Reset the system and see what happens. If the tire is actually low, you'll obviously need to service it. Did the shop that patched the tire use Nitrogen when the refilled it or shop air ? You may have dropped pressure over time since patch and dropped below system pressure parameter. If that's the case, again, go to dealer (or anyone with nitrogen) and service tire down then back up to proper pressure. In case you did'nt know, shop air will vary in pressure much more than nitrogen based on weather / ambient pressures, which would be why the tire pressure dropped off after repair if they used shop air.

As far as Chk Eng, have you driven much after putting the CAI on ? Some have seen Chk Eng Lt and after driving a short while, the light has extinguished after the system has adpated to new airflow.

[scomaro22]

Originally Posted by calflan

Really should'nt need to pull 5 and 20 AND battery cables. Same effect. Pulling 5 and 20 removes power from the ECM, without having to reset all other paramaters / selections (radio, tires, etc.). If you removed the battery cable, you basically did the same AND MORE as pulling 5 and 20.
Don't be nervous about relearning tire pressures, it takes a few minutes but is no big deal. The system just checks with the pressure transducers and updates the pressures.
What is your pressure now - prior to reset ? Who did the tire patch ? If it was a shop that may have messed with the schrader valve (fill valve) then your transducer for the tire pressure may be damaged and the system simply cannot get a pressure from that tire/wheel and is posting a fault. If the valve is damaged, you'll need a new one put on. Again, not a big deal, but not something you can do either.
If the pressure is low prior to reset, that's the problem. Reset the system and see what happens. If the tire is actually low, you'll obviously need to service it. Did the shop that patched the tire use Nitrogen when the refilled it or shop air ? You may have dropped pressure over time since patch and dropped below system pressure parameter. If that's the case, again, go to dealer (or anyone with nitrogen) and service tire down then back up to proper pressure. In case you did'nt know, shop air will vary in pressure much more than nitrogen based on weather / ambient pressures, which would be why the tire pressure dropped off after repair if they used shop air.

As far as Chk Eng, have you driven much after putting the CAI on ? Some have seen Chk Eng Lt and after driving a short while, the light has extinguished after the system has adpated to new airflow.

O ok got ya. Well as for the tire sensor, I brought it to a buddy of mines shop. I am thinking that maybe something was damaged. The plug holds and the tires are 35 all around, but the sensor on the tire that was just patched wont come up with a reading, and now none of the tires are coming up with a reading :( I do not believe they put nitrogen in the tire.

For the CAI, i drove maybe 2 miles with the new intake on. I am getting the Diablo tuner tomorrow and getting the car tuned with it on there, so hopefully that will take of that bc I think it may have something to do with the car running lean. I just want the tire situation fixed, and I have a call into the shop that did it and they are checking into it. The fill valve may have been damaged and that very well could be the problem

[steeleshark2]

Do you have to use nitrogen in the tires? Refer to this thread after installing the tune for your Predator:
http://www.diablosport.com/index.php...iewtopic&t=917

[calflan]

Do not HAVE to use nitrogen, but that is what is in there from Chevy. Obviously if you get a flat, you're going to have to use 'air'.

There are advantages to nitrogen, the biggest being pressure fluctuations based on ambient temperature, is minimal. 'Air' will compress and expand with atmospheric pressure and temperatures changing the tire pressure as this happens. Nitrogen is much less susceptible to these pressure variations and therefore you get optimum tire pressure much more of the time. Also, the sensor system is looking for a range of tire pressure (I'd guess around a 5 or 10 degree variance). With nitrogen, the tire pressure will tend to maintain what that system wants for tire pressure much longer and with more stability. This will give best tire performance and wear under all phases of driving, which gives you the best handling the car can offer. Aircraft use nitrogen because of the extreme temperature variances in flight from altitude vs. on the ground.

The pressure sensor is built into the schraeder valve (fill valve) and mounted on the rim. The sensor is inside the wheel on the opposite end (from the fill end) of the valve and has a small transmitter that tells the cars system where the sensor is mounted. When rotating tires, the system is reset to identify what sensor is on what corner of the car for the indication you get on the dash. If you rotate the tires and do not reset the system, a fault indication may show for a tire mounted in the wrong position vs. where the low pressure or fault actually is.

If the sensor became damaged, the system would lose track of what tire pressure is on the wheel with the damaged sensor and likley generate a fault message.