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Thread: Idle sporadically jumps to 2000 RPMs

  1. #21
    Senior Member Bitsyncmaster's Avatar
    Join Date:  May 2011

    Location:  Leonardtown, MD

    Posts:    6,877

    My VIN:    03572

    It's been a long time since I connected Logworks to my wideband. I finally found a download for my new laptop and it actually worked.

    My car is displaying about 14.2 AFR just sitting at idle. I did not really warm up the engine much and the AFR is swinging from about 13 to 15.

    I unplugged the FV and engine almost died but it did stay running displaying 20.5 AFR. So with my test is it did go lean when the FV was unplugged.
    Dave M vin 03572
    http://dm-eng.weebly.com/

  2. #22
    Senior Member NckT's Avatar
    Join Date:  Jun 2011

    Location:  Yorkshire UK

    Posts:    167

    My VIN:    No. 4068

    Well I got that the wrong way round, my mistake !

    It's when I fix the lambda circuit/ computers and reinstate the frequency valve's operation it goes rich and it had to be leaned out accordingly.

    Thanks for taking the time out to use your wideband o2 sensor
    RIP Rob van de Veer Top bloke

    I say Sir, I must be mad, one loves fixing K-Jet !

    Make sure there's plenty in the tank for the weekend chaps....

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