2000 Honda Civic Check engine light

Tiny
CIVICPA
  • MEMBER
  • 2000 HONDA CIVIC
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 92,700 MILES
Hello,
Recently, I had to replace my factory gas cap with a locking cap because of a rash of gasoline thefts by way of siphoning. I noticed that the new cap does not close tightly at all. My factory cap requires 3 clicks and it's tight as a drum. I own a 2000 Civic EX sedan with the 1.6 liter V-tech and have never had an issue with this car and I've maintained this car always. I read on other websites that the culprit for the check engine light to glow can be, among the many reasons, caused by a loose gas cap. If I were to switch gas caps and just leave the locking cap on the car when it's parked overnight and replace it with the factory cap before I drive the car be a solution to this issue?
Sunday, June 15th, 2008 AT 10:46 AM

2 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Hi CivicPA,

The gas cap can be the cause but you need a scan to confirm it.

As to your suggestion I would not be commenting as the gas cap is part of emission control and it might have legal implications.
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Wednesday, May 19th, 2021 AT 1:57 PM
Tiny
CIVICPA
  • MEMBER
  • 2 POSTS
KHLow2008,

Thank you for the reply. I'll take you up on getting the diagnosis done. I just suspected the cap because it's the only part I replaced within the last 4 days. I can only hope it's just that and nothing else. Can't afford a big repair bill in my current situation.

Thank you,
CivicPA
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Wednesday, May 19th, 2021 AT 1:57 PM

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