Having some engine trouble.

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  • nando
    Moderator
    • Nov 2003
    • 34827

    #16
    I would test all your sensors (CPS comes to mind, should be about 540ohms of resistance), coil, etc.

    electrical problems suck, I still haven't fixed my TPS. gotta rewire the whole damn thing too... yeah, make sure your TB isn't leaking coolant :P
    Build thread

    Bimmerlabs

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    • Jordan
      R3V OG
      • Oct 2003
      • 12907

      #17
      I think my CPS packed up and went home.

      I took it out to have a good look at it, its definately toast.

      The big yellow and black wires look fine. The 2 small black wires, the shielding, and the rubber cord are wasted.

      pic:


      Looks like I need to hit Patrick up for one of these tomorrow.
      Tenured Automotive Service Professional - Avid BMW Enthusiast

      Vapor Honing & E30 ABS Pump Refurbishment Service
      https://mtechniqueabs.com/

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      • e30sd
        Fistee
        • Jan 2004
        • 5517

        #18
        http://www.bmaparts.com/epcksoap.epc...entid=bmaparts

        why are there 2 on 9/87-up?
        sigpic

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        • Jand3rson
          Banned
          • Oct 2003
          • 37587

          #19
          n00b question: What is the CPS?

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          • e30sd
            Fistee
            • Jan 2004
            • 5517

            #20
            Originally posted by Eurospeed88
            n00b question: What is the CPS?
            crank position sensor
            sigpic

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            • Jand3rson
              Banned
              • Oct 2003
              • 37587

              #21
              Originally posted by e30sd
              Originally posted by Eurospeed88
              n00b question: What is the CPS?
              crank position sensor
              That's what I was thinking, thanks for the confirmation.

              Sounds and looks like the definite cause of your M20 woes, Jordan.

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              • kowalski
                E30 Mastermind
                • Jan 2005
                • 1791

                #22
                i read somwhere about the fuel systems having trouble on E30's when its below half a tank some times, the pump can't hold the presure cause of less fuel, top it off or clamp the return line and see if she winds up, also im more partial to the chevron gas... anywho sounds fuel related, i have that problem as well but its only when i first start the car and its at the low RPM's not the the high... anywho good luck to ya

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                • e30Matt
                  R3V Elite
                  • Dec 2003
                  • 5077

                  #23
                  Originally posted by kowalski
                  i read somwhere about the fuel systems having trouble on E30's when its below half a tank some times, the pump can't hold the presure cause of less fuel, top it off or clamp the return line and see if she winds up, also im more partial to the chevron gas... anywho sounds fuel related, i have that problem as well but its only when i first start the car and its at the low RPM's not the the high... anywho good luck to ya
                  Somehow I feel the picture he posted is the culprit, not fuel issues.

                  Jordan, if that doesn't solve the problem, maybe try swapping in a known good ECU.

                  "See, we're adding a little something to this month's sales contest. As you all know, first prize is a Cadillac Eldorado. Anyone wanna see second prize? Second prize is a set of steak knives. Third prize is you're fired."

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                  • Jordan
                    R3V OG
                    • Oct 2003
                    • 12907

                    #24
                    My in tank pump is new, and the outboard pump is not very old. I run my take till the light comes on all the time. in 9,000 miles or so I've had the tank more full then 1/2 once.

                    Ain't the issue. My money is on the CPS, I will order one tomorrow, should fix it.
                    Tenured Automotive Service Professional - Avid BMW Enthusiast

                    Vapor Honing & E30 ABS Pump Refurbishment Service
                    https://mtechniqueabs.com/

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                    • kowalski
                      E30 Mastermind
                      • Jan 2005
                      • 1791

                      #25
                      oops my bad i didn't see the second page to this form stopped reading at the first. i agree on the picture and on that note im going to take a look at mine tomorrow how much to those things cost?

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                      • Jordan
                        R3V OG
                        • Oct 2003
                        • 12907

                        #26
                        BMA price is ~$81.
                        Tenured Automotive Service Professional - Avid BMW Enthusiast

                        Vapor Honing & E30 ABS Pump Refurbishment Service
                        https://mtechniqueabs.com/

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                        • kowalski
                          E30 Mastermind
                          • Jan 2005
                          • 1791

                          #27
                          shitty those are expensive little buggers.

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                          • Stu Mc
                            R3V Elite
                            • Oct 2003
                            • 4083

                            #28
                            bmw sensors usually are

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                            • AndrewBird
                              The Mad Scientist
                              • Oct 2003
                              • 11892

                              #29
                              My question is, will your car be ready for the meet on the 26th?

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                              • Mot
                                45 toting redneck
                                • Jul 2004
                                • 4018

                                #30
                                it better be lol..

                                Knowing Patrick and BMA it will be here in 2 days. Plenty of time for jordan.

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