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  1. M

    Back Fire Through Intake Need Help

    I unfortunately stumbled upon the problem yesterday. We decided to pull the valve covers and have a look at the rocker movement while turning the engine over. Number 6 exhaust rocker barely moved maybe enough to crack the valve open. Popped the intake off removed the rockers and lifters. That...
  2. M

    Back Fire Through Intake Need Help

    Ah gotcha thank you for clarifying! I will give that a try tomorrow. Looks like I should beable to get it set by multimeter for now. We're headed back from Buffalo NY (I live in Iowa). Dad just sold his concourse 70 Buick stage 1 car and we agreed to deliver it. I've had some time to research...
  3. M

    Back Fire Through Intake Need Help

    After doing some research I now understand what the cam sensors job is. I'm a little skeptical that this could be the issue only because it sounds like when you unplug the cam sensor it should kick the fuel system into batch fire. I did go ahead and snag a spare cam sensor from a friend and...
  4. M

    Back Fire Through Intake Need Help

    I'm going to add the tps sensor to my list of things to replace as far as I know it's the original Someone earlier suggested unplugging the cam sensor after the car was running to see if it made a difference. It didnt have any effect. I assume the ignition systems on these are waste spark and...
  5. M

    Back Fire Through Intake Need Help

    I finally got a chance work on the car again and confirmed a few things. I swapped ecu and chips out no changed. Did a compression check all cylinders we're 150psi. Confirmed firing order on wires. Did a smoke test on the vac system no leaks. When I pulled the plugs they looked black the car is...
  6. M

    New Member From Iowa

    That makes sense a friend of mine had said the same thing. The kit came with the car along with a lot of these other parts.
  7. M

    New Member From Iowa

    Thanks guys I really appreciate the help! Ill check the cam sensor tonight and let the car warm up and get some more video. Is the Casper's o2 kit a decent unit? Looks like it's made well.
  8. M

    Back Fire Through Intake Need Help

    Wow that's crazy. I'll give it a try. I also have an extra wideband I could hook up to verify.
  9. M

    New Member From Iowa

    Also I didn't post this in this thread but these wires are disconnected by the passenger rear head. Are these both ecu grounds or something else?
  10. M

    New Member From Iowa

    Thank you! I'll check the cam sensor. Is there tutorial somewhere on how to check it? I've checked the wires but I can check them again and make sure. This is the O2 sensor kit I have it doesn't have a name on it.
  11. M

    Back Fire Through Intake Need Help

    It was new when I got the car running again. It's been upgraded to the 4 pin o2 kit I think racetronics offers. Can't remember the brand for sure.
  12. M

    New Member From Iowa

    Yup I've had it on the shrader valve.
  13. M

    New Member From Iowa

    Tps is .42 and I did check the maf settings in the translator and this maf came off a friend's running car when he went speed density. I'm beginning to think maybe the used fuel pump I put in is having a problem.
  14. M

    Back Fire Through Intake Need Help

    I took a video of the scan master at idle and part throttle. It goes through each screen.
  15. M

    New Member From Iowa

    I took a video of the scan master at idle and part throttle. It goes through each screen.
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