Okay my car is cranking strong but isn't starting. I've been doing some research and have been wondering if it's the infamous cam and/or crank sensors. I don't have any codes being thrown though.

However lately I've had issues where the car wouldn't start until a couple after a couple of tries. The car would also have some issues with drivability and has died a couple of times in the past while driving. I would then pop start it. At times the idle would be a little rough too.

The car is getting fuel. I'm pretty sure it isnt the security system because the security light is off when I try and start it. It has a new battery. I also hear the throttle body opening and closing so I think it's good. I also changed the plugs recently but I'll check them and also check for spark.

So any theories or troubleshooting ideas? Thanks in advance guys.

 

what kind of car is it ?

 

It's a g35

 

is your car modded? if so it could be a ton of things. how do you know its getting fuel?

 

Well at least I'm pretty sure it is. I checked the pump and it's priming. And yes my car is modded. Built block and TT w/ Fcon. The car has been a headache lately.

 

your leaving out lots of info

 

What else man?

And is there any way to test the sensors? The shitty part is that there are no CELs. And the starting issue was happening more frequently lately. I almost got stuck somewhere because it almost didn't start. And it seems I would have to crank the car extra long to get it to fire up.

 

you have a fuel pressure gauge that shows that its priming to proper pressure?

 

I unfortunately don't.

 

Can you hear the pump(s) prime when you turn the key to the right just before starting it? Did you check the fuse for the fuel pump (its in the tower by the battery)?

Possible your throttle body is dirty?

 

I have an a1000 and Walbro. I hear em both priming. I even disconnected the a1000 to hear the Walbro for good measure. I'm gonna check the throttle body to see what it's doing when I turn it. But I'm pretty sure I hear it cycle when I turn the key to the off position.

 

Does anybody know if the cam and crank sensors can go bad without throwing a CEL? If I remove em any idea how I would test em with a multimeter?

 

Bump?