Ok so I have this reoccuring problem. about once every 3 weeks my car won't start. It cranks and cranks but wont fire. after waiting and trying a few times (like 9) then it will sputter to life. I have already replaced the fuel pump relay, have good spark plugs, have clean sensors (new o2 sensors) but it still randomly does it. This has happened before and after cleaning and replacing sensors. does anyone hava clue what this could be?[X(]

 

Engine coolant temp sensor is the cheapest way to start.. Could be the MAF. Also a throtle body alignment/adjustment wont hurt.

 

How do I do a throttle body adjustment? do i need a vag com?

 

any CEL light?? have you checked for codes??

 

CEL light only after a couple of times when it won't start. I have not checked for codes, I will probable take it to napa and have them check this afternoon.

 

it will have some soft codes stored but check for vacuum leaks and is there plenty of fuel in the tank, the CEL will come on that's normal when it wont start because it will be flooding when did you change the spark plus and air filter??

 

the filter is a k&n, and it's clean. I changed the spark plugs about 8 months ago.
And it will do it at different fuel levels, full or not.

 

well check for codes first then we can give a better answer so no point guessing

 

replace the battery as well.

 

Ya it could very well be a battery dying. But if you got a CEL, deffinately get the codes first.