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Thread: 73 TR6 w/ 1227747 ECU - could use a little help

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    Electronic Ignition!
    Join Date
    Aug 2014
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    Red Deer, AB, Canada
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    11

    Unhappy 73 TR6 w/ 1227747 ECU - could use a little help

    '73 TR6 2.5L in-line 6.
    No VSS (one on order but not here yet, ran without on with the '288)
    No Knock sensor
    No EGR
    No IAC

    As a newbie and wanting to learn I couldn't leave well enough alone and swapped out my 16144288 for a 1227747 since there is much more information available for the '7747. Initial bin was provided by John at CustomEFIS with some minor VE table and pump shot changes by me. Car ran reasonably well with the '288 with some minor issues at low speed, low rpm (cruising through playground or school zones some minor surging).

    Car now runs poorly in closed loop but well in open loop. Initially copied over all settings from '288 but car ran like crap. Set as open loop and verified VE table with WB and the car ran well, switch back to closed loop and back to shite. I can get it to run better if I change the integrator delays out to 4000ms, but feel that has to be just masking the problem as the O2 sensor is 12-15" from the exhaust ports.

    I would appreciate it if anyone could review the attached bins and log files and make any suggestions. I have included both the open loop and closed loop bins and log files, WB data logs from an Innovate LM-1, and the original '288 bin in case anyone has a better $A0 XDF and can find any other changes I missed.

    Dave

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