Check Engine Light

[CorvetteLola]

I recently bought a 2001 C7. After a couple of days the check engine light. The codes were throwing a P0172 and a P0175. The car has an aftermarket air flow system. I noticed that the notch in the hose was not in alignment with the post on the intake. I fixed that and turned the engine light off. I went to do a drive test and stopped to get gas. The gas cap seemed to fit very loosely on the tank. I bought a new one on Amazon and it fits loosely as well. Is this normal?

 

[Cariboocreek]

Clarification is in order. There is no such beast as a 2001 C7.

 

[CorvetteLola]

Clarification is in order. There is no such beast as a 2001 C7.

I am sorry. I fat fingered. It is a C5.

 

[Murray20c8]

Sounds like one of your O2 sensors

P0172 and P0175 Rich Trouble Codes

Learn what P1072 and P0175 trouble codes mean, their symptopms, how to diagnose, and how to correct these codes

gotech.com

 

[CorvetteLola]

Sounds like one of your O2 sensors

P0172 and P0175 Rich Trouble Codes

Learn what P1072 and P0175 trouble codes mean, their symptopms, how to diagnose, and how to correct these codes

gotech.com

Is it normal for the gas cap to fit loosely?

 

[Black 03 Z06]

You can identify as a C7 if you like, no one here will judge.

My gas cap fits snugly, wish I could be of more help.

 

[Dave91TM]

I recently bought a 2001 C7. After a couple of days the check engine light. The codes were throwing a P0172 and a P0175. The car has an aftermarket air flow system. I noticed that the notch in the hose was not in alignment with the post on the intake. I fixed that and turned the engine light off. I went to do a drive test and stopped to get gas. The gas cap seemed to fit very loosely on the tank. I bought a new one on Amazon and it fits loosely as well. Is this normal?

I googled C5 obd codes found P0172 Fuel Trim System Rich Bank 1 and P0175 Fuel Trim System Rich Bank 2. I have no idea what that means or how to fix it but with a deeper google search or a shop manual you can probably find something.

 

[Murray20c8]

Is it normal for the gas cap to fit loosely?

No, it's not. When my LS1 Camaro went in once for the emissions testing they replaced my gas cap to make it pass. When I got home I put the old one back on and it never failed again! LOL. They can go bad, but I've never heard of it myself.

 

[OL Yeller]

My gas cap is snug fiting as well. Have a look at the gasket.