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Engine management / Re: Both CPS? at the same time?

« on: June 11, 2013, 02:48:10 PM »

If it's not the relay it's likely the CPS.  Without the crank sensor signal the computer won't turn on the relay, so no fuel pump.

On the crank sensor wire, pins 1 & 2 need to be about 640 ohms, pins 2 & 3 and 1 & 3 should be very high, like 300K ohms or so.  I looked at your earlier post...you did test the sensor, right?  Not the harness heading back to the computer, right?  If so, don't do that.  Doing a resistance or continuity test on the harness can damage the computer.

I'd advise getting a cheap multimeter at Radio Shack, Sears or Harbor Freight.  They're self-calibrating, do many tests, and are very reasonable.  I bought a few of the $4.99 HF units (along with some of those cheap LED flashlights) just to have in the cars.  You never know when you'll need one!

Yes that would help in many cases. There is not harness is going to head on you computer for sure..