Cam sensor failing?
Thread Starter
Staging Lane
Joined: Sep 2015
Posts: 51
Likes: 0
From: Hugoton,KS
Cam sensor failing? I've had a problem with my 00 z28 since I bought it and the previous owner said it started after he had changed the cam and crank sensor. It'll sometimes start on the first try and sometimes it'll take anywhere from 2-9 times to make it start. It'll just sit there and crank and pop through the exhaust. Pretty embarrassing. It's not throwing any dtcs. Runs good though after it turns on. Seems to do it more so when it's colder out for some reason.
Last edited by GTkllr; Jan 29, 2016 at 02:07 PM.
Yes I’m having the same problem it sometimes don’t start on the first try I will have to turn the ignition on and here the fuel pump and then after that it will start right up don’t know what’s the problem it might be are crank sensor might be going bad
Teching In
Joined: May 2018
Posts: 15
Likes: 0
From: Columbia Station, OH
Try replacing crank sensor (easy job) then have someone re-learn the procedure on both crank and cam to synchronize. Some reputable race shops or dealerships should be able to do this for you.
Last edited by NoSmokies; Sep 18, 2019 at 10:14 AM.
TECH Junkie
Joined: May 2012
Posts: 3,050
Likes: 715
From: Poplarville, MS
Check the fuel pressure on start up. The check valve in the fuel pump may not be holding. Cycling the ignition a few times will repressurizing the fuel lines if the fuel pump relay is working.
