Subject: This is what my 740 did just before the CPS went totally nuts. Author: 740gti : member since November, 2007 : 275 posts Posted on: 2008-02-02 16:09:40

You might have bought some bad gas. You may be having fuel pump, filter, pressure, or some other fuel delivery issues. It could be a number of things, but it is important to know that the Crank Position Sensor should be high on that list.

Bad thing is, you can test it, and the readings can be perfect, but it may still be bad! I blew $600 in diagnostics at my indy, he felt bad for me so that was a deal, if I had paid in actual hours it would have been more like $1000. Everything including the CPS tested fine the whole time. Someone suggested that they change the CPS anyway, POW, ran like a new car! They cost $70 at the dealer, & others have had them go bad recently, so you may just want to change it first.

• 94 740iL Stalled now runs rough - apane 2008-02-02 12:34:24 (157 views)
  • I'd bet on bad gas, too much of a coincidence (nt) - rick540 2008-02-03 23:35:36 (73 views)
    • Not necessarily, at ~17 MPG, we spend a lot of time at gas stations (nt) - 740gti 2008-02-04 13:57:32 (66 views)
  • This is what my 740 did just before the CPS went totally nuts. - 740gti 2008-02-02 16:09:40 (117 views)
    • Re: This is what my 740 did just before the CPS went totally nuts. - apane 2008-02-03 11:57:25 (78 views)
      • Re: This is what my 740 did just before the CPS went totally nuts. - apane 2008-02-03 12:07:10 (53 views)
        • Re: This is what my 740 did just before the CPS went totally nuts. - Shayne 2008-02-03 12:29:01 (84 views)
          • Yeah, Shogun recently posted a link to the E34 board about aftermarket CPS (url) - 740gti 2008-02-03 14:01:25 (97 views)
            • Re: Yeah, Shogun recently posted a link to the E34 board about aftermarket CPS - apane 2008-02-04 15:07:30 (84 views)