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Thread: Need someone with obdii scanner/ help get her started

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    Default Need someone with obdii scanner/ help get her started



    New engine in, getting no spark from ignition coil and I have a check engine light on.
    All grounds clean and tightened, I can capture pictures if it helps.

    Ide hope a scanner will point me on where to look at least.

    Thanks for any help,

    Matt

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    Default Re: Need someone with obdii scanner/ help get her started



    Good progress on the engine swap!

    Sorry, I don't have one.

    Does the local auto store loan them out or do you need to drive up for them to use theirs?

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    Default Re: Need someone with obdii scanner/ help get her started



    I keep a $15 scanner in my vehicles. Would recommend borrowing from Autozone or Advanced Auto Parts -type place if you need it now. Would gladly loan to you, but I'm no where near FoCo.

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    Default Re: Need someone with obdii scanner/ help get her started




  5. The Following Member Says Thanks to Java For This Post:

    open_circuit (February 19th, 2019)

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    Default Re: Need someone with obdii scanner/ help get her started



    The key trick is for newer models I believe as it's never worked on mine. Unfortunately auto zone and the like a do not loan scanners.

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    Default Re: Need someone with obdii scanner/ help get her started



    Harbor Freight offers them fairly cheap and usually interface with your cellphone.

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    Default Re: Need someone with obdii scanner/ help get her started



    Got a bluetooth scanner from a friend. Is there anyone here that can help get their hands dirty on getting my jeep running again, I need someone that knows what they are doing, or anyone that might be a good contact to ask? I'm beyond what I know to do at this point.

    Thank you

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    Default Re: Need someone with obdii scanner/ help get her started



    I'm no OBDII wizard but I'm capable enough. I'd be happy to stop over to see what can be done.

    Gett'n spark... Is spark in time... Gett'n gas...

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    Default Re: Need someone with obdii scanner/ help get her started



    I was wondering if you got the engine from a similar year and don’t need to change the ecu?

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    Default Re: Need someone with obdii scanner/ help get her started



    Do you hear the fuel pump spin up when the key is initially turned to RUN? Do you have fuel / fuel pressure at the rail?

    This is still coil and distributor spark, yes? Is the coil getting 12vDC? Is the coil "giving spark"?

    Is the crankshaft position sensor the same between the two motors?

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    Default Re: Need someone with obdii scanner/ help get her started



    A big question - what code or codes are being thrown?
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    Default Re: Need someone with obdii scanner/ help get her started



    P0122 throttle position circuit a low. I haven't read anything that says this will prevent starting.

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    Default Re: Need someone with obdii scanner/ help get her started



    Do you have a multimeter?

    This might get things close:
    https://troubleshootmyvehicle.com/je...timeter-test-1

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    Default Re: Need someone with obdii scanner/ help get her started



    If the reference voltage is not there, it may well be affecting other items which in turn are keeping it from starting.
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    Default Re: Need someone with obdii scanner/ help get her started



    Got some questions, how did you test for spark? Did you confirm fuel pressure in the rail? How did you set the distributor? Make sure you are at top dead center on intake stroke not exhaust stroke. The engine is cranking?
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    Default Re: Need someone with obdii scanner/ help get her started



    Im happy to answer them. The engine is cranking. The distributor was indexed using the toothpick trick/ aligning the holes on the spindle and housing. Top dead center is indicated by lining up the harmonic balancer notch, with the notch 0 on the timing cover, which I did. I have not put a fuel pressure gauge on the rail, but the pump primes every time and I bled fuel from the rail just to make sure it was making it there. I tested for spark from the ignition coil out with a test light.

    I do have a multi meter Jim, I'll review the article.

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    Default Re: Need someone with obdii scanner/ help get her started



    4x4JeePmaNthINg previously posted:
    "Top dead center is indicated by lining up the harmonic balancer notch, with the notch 0 on the timing cover, which I did."

    No mention of the compression stroke.

    The notch lines up at the end of the compression stroke and the end of the exhaust stroke. It is very easy to install 180* out.
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    Default Re: Need someone with obdii scanner/ help get her started



    So... easy test is to index dist 180deg and hit the key!

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    Default Re: Need someone with obdii scanner/ help get her started



    Hypoid previously posted:
    "No mention of the compression stroke.

    The notch lines up at the end of the compression stroke and the end of the exhaust stroke. It is very easy to install 180* out."

    Will the rotor still line up to the 5 o'clock position on both compression/exhaust stroke?
    How will I know which stroke it's on so that I turn the crank over to the compression stroke?

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    Default Re: Need someone with obdii scanner/ help get her started



    4x4JeePmaNthINg previously posted:
    "Will the rotor still line up to the 5 o'clock position on both compression/exhaust stroke?"

    No. Camshaft and distributor should be turning at 1/2 the speed as the crankshaft. Crankshaft will make two revolutions (4-cycle engine) to one revolution of camshaft and dist.



    4x4JeePmaNthINg previously posted:
    "How will I know which stroke it's on so that I turn the crank over to the compression stroke?"

    In my mind (let's see what others say)

    1) If you have the camshaft cover off you can see valve operation (#1 intake & exhaust valves closed on compression and power strokes).

    but you likely have the camshaft cover on, with nice sealant and a fresh gasket and you don't want to pull the cover just to see valve operation so I'd

    2) Pull the #1 spark plug and index the motor (starter motor or wrench crank on the cranshaft pulley bolt) and notice compression (thumb or finger sealing spark plug hole for #1) pushing your finger out of the way - that's the compression stroke - just after that stroke would be the power stroke and your finger would be pulled towards the spark plug hole.

    (or just index the dist 180 degrees and hit the key)???


    What say others (am I off base)?

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