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philiow313

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Posts posted by philiow313

  1. well im a genious and never checked the local parts stores :roll:

     

    picked one up with my student discount for $26 bucks.

     

    installed it, and there is still less popping then there was before all this, but more than when i had the harness side of teh wire grounded out.

     

    what about the themal vacuum valve? what can i do about that, it seems like that would be un-AFM metered air entering the system...?

  2. i just recently replaced all but 1 or 2 vacuum lines which looked in ok condition, but were mostly just gonna be a pain to get to :oops:.

     

    so should i reconnect the sensor for the time being? i replaced the clogged cat a few weeks back and was advised to replace the sensor, but at $110 bucks from nissan i couldnt afford it.

     

    as far as the vacuum leaks go, the "thermal vacuum valve" that sits about dead center on the intake manifold always seems to be sucking air in from the backside... would this be a problem, and how do i fix it?

  3. ok so my exhaust had a really bad problem with popping/backfiring... i had a feeling my O2 sensor was bad, so i disconnected it and grounded the harness side to the intake manifold, and the popping is virtually gone, but i noticed my gas mileage is HORRIBLE now. bout 50 miles on a 1/4 tank.

     

    is it a good idea to leave it grounded, and just deal with the low mileage? or should i connect it back up and just live with the popping until i get the new sensor?

     

    also, with it grounded, im running really lean right? or am i backwards, and really running rich now? im not used to old nissan electronics, i dont know if its the same as cars today.

  4. i have a AVI clip, bout 520kb that needs to be hosted. anyone?

     

    it sounds really good. i still have a backfire though, youll hear it in the clip. anyone know a common reason to have this problem? i passed smog but the CO was a tad high... too rich? bad o2? i dont know this car very well yet on a technical standpoint. haha.

  5. for the primer, i really dont care. this car is a fix and sell project, because im thinking of getting an s30 or 510 for my next car. i got this car for free, and it had some body damage, then the head gasket went. like i said, i got bored and just painted it.

     

    if it flakes off, it flakes off. haha

  6. well i failed smog, the cat was destroyed.

     

    the shop is putting a high flow cat on, 2.5" pipes, and a glasspack muffler with a tailpipe to look stock.

     

    ill take a sound clip/vid when i pick it up tommorow, and ill post it here.

     

    first mod to the new Z!

     

    btw its a 1981 280zx non-turbo 5 speed.

  7. What is the exact wording of the Code 45 from the Haynes manual? If it says a leaking injector it might not mean externally leaking it might mean the injector is leaking internally cause that cylinder to run extra rich.

     

    Does your car have an IAC' date=' idle air control motor? If it does take it out and see if its ok. I have seen IAC's do this exact concern. If the IAC is not working all the time it will cause the car to die when you are not pressing on the gas pedal.

     

    Guy[/quote']

     

    this is exactly what i would have said.

    and yes, do a full tune up. whether it fixes the problem or not youll run better for sure :)

  8. doing a headgasket job on my 81 ZX non turbo.

     

    is there a way to get the chain and sprocket back on the cam without dissasembling the front of the motor to get at the crank sprocket and chain tensioner?

     

    i dont want to take all that off if i dont have to... and if it is necessary to remove all that.... does the radiator need to come out?

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