So Tonight The Dash Said The Fuel Cap Was Not On Right, So I Checked The Cap And All Seemed Fine. Doesnt Make Sense? My Question What Other Things Could Make This Pop Up All Of A Sudden?
Thanks

 

reset the ecu if the problem persists make sure the last guy who filled up ur gas tank didnt mess anything up, if you cant find anything visualy wrong take it to the dealer

ps. wrong sub-forum

 

My bad did not realize that

 

gas cap must be on 3 clicks minimum to ensure the sealed air system is working.

 

i am also getting that message i just cameback from the service. they couldnt do it on the weekend so i schedule appointment during the weekdays. the messsage is "Tighten Gas Cap" i have that problem for 2 or3 month comes on and off. i replaced the gas cap and light still comes on .... so they have to do the vacuum test and other tests. they got techline involved in the case. so lets see what happens after Aug 4 2008

 

i have had that problem for a few months also i figured that its nothing. i have taken it to the dealer and they made it go away but it came back after a few days.it all depends how u drive if u are agressive on your car or drive normal..

 

it doesn't matter how you drive. One of the sensors that detect fuel leakage (fumes) might be bad.

 

Modern cars are mandated to have a system to test that the gas tank holds pressure, then burn fumes in the engine once its warmed up.

You have a test pump, pressure sensors, plus the purge valve, charcoal cannister, all sorts on hoses, check valves, pressure valves, and so on....

A leak anyplace, or a bad/dirty valve, bad gas cap, can cause problems, as can topping up.
Topping up is BAD, as liquid gets into all the stuff and can cause problems.

I had the same problem on my passat (at one year old), I never found the problem, but plugged the test pump to trick the system into thinking everything was ok, and traded the car in on the TL.

Brett

 

it does happen when i drive it agressive and then when i start driving normal it goes away but still i think its not normal

 

Id disconnect the battery during dinner or something and let the computer die out....afterwards reconnect the battery and obviously make sure the cap is on tight and start the car....it happened to me a few times and since i reset the computer it hasnt done it.

 

Amer, did anything happen on the 4th? I'm taking my car in (maybe tomorrow) for the same problem. This will be the 3rd time they looked at it. The first time they said it was a bad gas cap so they replaced it. The 2nd time the service advisor didn't seem to want to take it in. Wanted to tell me that I should just tighten it.

This time I'm armed with a spreadsheet that shows mileage and fuel levels when it comes on and off. We'll see what they have to say. I was hoping to see if anyone had any updates before I go in.

 

I also replaced the gas cap but didnt help. My car is still in the shop. Took it monday and they said they found small leak by the fuel filler neck that goes from gas cap to the the reservor. They are going to replace the fuel filler neck and recheck for leaks and drive the vehicle.

They worked with techline and they are awear of this problem so they have to fallow these steps and procedures of testing components out that techline gives them to trace this problem.

 

Well I guess it's a good thing that they actually found a problem, so hopefully the "fix" will take care of it. I'm going to take mine in either tomorrow or Friday and let them work on it, although I hope I don't have to go without it for too long.

We both have NBP TL-S's, I wonder if this problem is specific to that color.

I know color has nothing to do with the fuel system, but it does make you go hmmmm?

 

well they call me today and said its still not ready and what they replace didnt fix the problem. they still have to check the car over so i see what they tell me tomorrow

 

I got the same response today. They did a smoke test and found the problem in the fuel filler neck. Unfortunately it is a special order part and it won't be in until some time next week. They want to keep it for a few hours after the work is done to make sure it doesn't repeat.

 

i picked up my car today it is fixed they replaced the fuel filler neck and they re test everything and checked out okay. my advisor was not awear of it yesterday so he told me it was not fix but it was i was more in contact with service manager and shop forman so lets see what happens afterwards.

 

let me know how it goes ..let me know if the light come's back on then ill have my dealership fix mine as well

 

no problem i keep you updated

 

thanks

 

Mine was fixed yesterday. For the last 24 hours, I've had no fuel cap warnings!!!!!!! I wonder if they just disabled or removed the bulb?

 

Its been a 1 month and i have not got the light on. so the problem was the fuel filler neck on my side.

 

shit i got the same problem. i guess i should take my car in soon.

 

yes- they removed the bulb- thats definetly what they did!
Who cares if it wont pass smog and drives bad- its out of the shop- that all they care!

NOTE: above statement meant to be in color RED for sarcasm

There seem to have been a run of cars with bad filler necks- you guys should compare production dates- and the ziners who are still waiting to go to dealer- call and make a file with acura 1-800-382-2238 x5 documentring the problem
If this is widespread, a recall is needed- or if its a certain vin range, acura can do a tech bulletin with goodwill warranty on the repair

 

cool nice to know.. thanks will call, aint trying to pay lol

 

The problem is PCV valve malfunction (36162RDVJ01)
Solution: change the broken PCV valve

 

On 12/11/2009, Acura released service bulletin = 09-056: Fuel Cap Warning Message is On Without DTC'c

Applies to: 2007-2008 TL -all

Symptom
A TIGHTEN FUEL CAP msg appears on thb MID w/o setting any pending or confirmed DTC's.

Probable Cause
An intermittent fault in the EVAP canister purge valve causes the PCM on-board diagnostics for the evaporative emissions to fail.

Corrective Action
Replace the EVAP canister purge valve

The EVAP canister purge valve is located near the throttle body. Failed part number: 36162-RDV-J01