Question about 1996 Jaguar Xj Series

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Cranks but doesn't catch or start - 1996 Jaguar Xj Series

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  • goldmainline Oct 13, 2010

    What is good brand/type code scanner for this car?

  • goldmainline Oct 13, 2010

    Went and bought a scanner and ran it. The codes i get back are P1775 and P0727
    From what I can find the on the forums possible culprits start with the ERG valve all the way up to the ECU or the harness connecting the ECU to the trans. Apparently the P1775 code refers to a lack of communication between the engine and Trans. Any insight would be helpful.

    You should also know, about a week ago the car stalled and the check engine light and trans light came on. I changed the air filter and checked one plug (it looked clean). i then cycled the ignition several times and drove the car myself (wifey's car) for 20-30 miles and it seemed to run fine. Lights went out a a day later (more ignition cycling?) and I thought everything was ***** dory, until to day when it just cranks with no indication of catching.



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This could be either the ignition system or the fuel system at fault here, so you need to check for spark at the spark plugs and check for fuel at the fuel rail.

Let me know if you need more information.



Posted on Oct 14, 2010

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Hi! This can be caused by a faulty TPS (throttle position sensor). If the TPS is faulty the car may not start, only cranks. Try to run a scan tool too for specific fault codes. Hope this helps and thank you for using FixYa!

Posted on Oct 13, 2010


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