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Evap Gremlins

295 views 5 replies 3 participants last post by  Dlcaswell  
#1 ·
Hey all 08 ex-l with 180k. My van has been alternating between telling me to check the fuel cap and a check engine light about my evap purge valve. Replaced the valve and got a OEM cap, took off the o ring on the cap and put some moly coat on it just for peace of mind and it’s still showing me replace fuel cap messages. It needed a smog and a new battery so I replaced the battery but now the drive cycle won’t complete because of the code! Any advice is appreciated. Thanks!
 
#2 ·
How are you verifying your drive cycle? With the key, or with a scanner?

There is one step in the drive cycle that does not need to be completed relating to EVAP system to pass OBD2 smog check. Find out which step isn't complete on yours.
 
#4 ·
On my 2nd Gen when I had the Check Fuel Cap message, cleaning the o-ring on the cap and inside the tube with an alcohol wipe helped get rid of that message.
How would you verify with the key?
It's in the back of your Owner's Manual, I think the CEL blinks 5 times. Found it (searched "readiness")!
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