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Thread: Help needed 98 Suburban - tryiing to change the CPS - fouled by the PS pump

  1. #16
    LeroyDiesel.com Burning oil's Avatar
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    So you moved the pump over to shift it out of the way to gain clearence so CPS could be removed, right??
    Leroy.
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  2. #17
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    Quote Originally Posted by Brooklyn Tow View Post
    Glad you got it.....You still owe us some pics.

    What was the issue?........And did the CPS solve the problem?
    Its a long one and still ongoing - i originally raised it on the other forum (before i found you guys !) so have kept it running there.

    Basically the car would not maintain idle - did the basic tests (2000 RPPM etc) and they all pointed to a faulty IP. But before biting the bullet on that (i am in Australia, and these cars are as rare as Rocking Horse Sh*T) i wanted to isolate everything else it could be, so i replaced

    CPS - No Change
    PMD - No change
    PMD extension and harness on pump - no change

    I had already done all the basic troubleshooting in terms of fuel lines, fuel delivery, air in the fuel lines, air in the return lines etc, checked and cleaned all grounds and the like

    Once all of this was done the only way to get stable revs was to disconnect the OS - which obviously put the car into limp mode but let me drive it to the mechanics.

    Got a new pump in from Kennedy Diesel and had the mechanic install that - following the steps given by others on here and the other forum - scribed marks lined up and all good - car fired up with only one injector cracked and ran fine for a 50KM drive.

    I had not at this stage performed a TDCO as i was waiting for CarCode to arrive.

    The next day the car would not start despite extended cranking - checked my code reader (Autel Maxitrip) and it gave me a CPS code - checked this and the cable was loose - looked like the mechanic had not locked it in well enough

    Now it looks like the combination of the new pump and the CPS disconnected has forced a relearn on the TDCO - because the car was real hard to start and ran terribly - this is the day after it started beautifully.

    So the next day my Carcode arrived, and i hooked it up, started the car (after much cranking) and attempted to work out how to use CarCode based on the HowTo Racer supplied - not real sucessful and along the way the pump went from having a value of +1.3 to +2.46 - as it was getting worse at that point and i could hardly keep it going - i shut it off and went looking for more help on the other forum in terms of how to use CarCode properly.

    The car has not started again since that shutoff

    I am no getting any fuel at the Injectors, but have verified fuel at the return on the pump and that the solenoid is operating OK

    (i have been through all the diagnostics this week again - with replacing the PMD, moving it near the pump and bypassing my harness etc)

    In the end i burnt out my starter and have just had to order a new one.

    That will arrive on Monday.

    Have just spoken to John Kennedy and he thinks it is unlikely the pump has failed this quickly

    He thinks the pump is now refusing to pump fuel because it is timed so far out and suggests moving it 1mm to the right to try and get it back into a reasonable approximation for timing

    So thats where i am at

    And yep i do owe you some pictures !!!

    I will post them up tomorrow

    Craig
    Holden 1998 Chevy Suburban - Australian Build - Right Hand Drive
    65.L turbo diesel
    Remote mounted Stanadyne Bulletproof PMD on Front Grill
    Jackmaster Bypass oil filter
    Twin tanks - startup on 100 BIO, main tank on 100% WVO
    Dual Walbro FRB-5 pusher pumps
    30 plate FPHE for Vegoil.

  3. #18
    Registered User ak diesel driver's Avatar
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    http://www.thetruckstop.us/forum/sho...php?9198-OBDII

    this thread has a step by step instructions for doing TDCO with Carode
    96 gmc k2500 4" exhaust, marine inj, #9 resistor, GL4, turbomaster, duraterms,-1.94 TDCO,FTB, remote pmd, isspro pillar gauges, lift pump relay added ,141 block, 2 1000 w block heaters, 2 150w glue on oilpan heaters, 2 150w glue on transpan heaters, 97 K47 air filter , IP replaced at 229k ,gear drive set awaiting install, Parts for intercooler waiting to be installed

    94 k1500 excab sb 6.5 plow truck. Fisher plow w/engine driven pump, F intake, h/m turbomaster, plowing chip by Buddy, remote PMD w#9 resistor, Duraterms

    96 k3500 CC 6.5 dually
    94 k2500 excab lb 6.5 parts truck
    00 burb 5.3 wifes
    70 Ford reg cab lb 428 cj richmond 5spd lockers 35s
    75 Vette built 383 needs work
    62 Tempest convertible way on the back burner project
    85 Honda VF1000R
    90 P30 Cummins BT4 work van
    90 Int SA dump w/trailer
    416c backhoe

  4. #19
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    Quote Originally Posted by Burning oil View Post
    So you moved the pump over to shift it out of the way to gain clearence so CPS could be removed, right??
    Yep - looks like that is what is required for our Aussie Suburbans

    Craig
    Holden 1998 Chevy Suburban - Australian Build - Right Hand Drive
    65.L turbo diesel
    Remote mounted Stanadyne Bulletproof PMD on Front Grill
    Jackmaster Bypass oil filter
    Twin tanks - startup on 100 BIO, main tank on 100% WVO
    Dual Walbro FRB-5 pusher pumps
    30 plate FPHE for Vegoil.

  5. #20
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    Quote Originally Posted by ak diesel driver View Post
    http://www.thetruckstop.us/forum/sho...php?9198-OBDII

    this thread has a step by step instructions for doing TDCO with Carode
    Yep that is the one i followed - it is more the software is horrible - there are buttons and scrollbars that do not do anything.

    As a newbie (to doing a TDCO) and using Carcode i found it scared me 1/2 to death !

    Anyway Racer has turned this into a PDF and then one of the other guys has extended it with some more info on the other forum.

    Once i have my truck running again i am going to try and enhance this write up a bit for someone new to the whole process.

    Craig
    Holden 1998 Chevy Suburban - Australian Build - Right Hand Drive
    65.L turbo diesel
    Remote mounted Stanadyne Bulletproof PMD on Front Grill
    Jackmaster Bypass oil filter
    Twin tanks - startup on 100 BIO, main tank on 100% WVO
    Dual Walbro FRB-5 pusher pumps
    30 plate FPHE for Vegoil.

  6. #21
    Registered User ak diesel driver's Avatar
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    if you follow it step by step without playing with anything else it works fine.
    96 gmc k2500 4" exhaust, marine inj, #9 resistor, GL4, turbomaster, duraterms,-1.94 TDCO,FTB, remote pmd, isspro pillar gauges, lift pump relay added ,141 block, 2 1000 w block heaters, 2 150w glue on oilpan heaters, 2 150w glue on transpan heaters, 97 K47 air filter , IP replaced at 229k ,gear drive set awaiting install, Parts for intercooler waiting to be installed

    94 k1500 excab sb 6.5 plow truck. Fisher plow w/engine driven pump, F intake, h/m turbomaster, plowing chip by Buddy, remote PMD w#9 resistor, Duraterms

    96 k3500 CC 6.5 dually
    94 k2500 excab lb 6.5 parts truck
    00 burb 5.3 wifes
    70 Ford reg cab lb 428 cj richmond 5spd lockers 35s
    75 Vette built 383 needs work
    62 Tempest convertible way on the back burner project
    85 Honda VF1000R
    90 P30 Cummins BT4 work van
    90 Int SA dump w/trailer
    416c backhoe

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