11/85 325e with S50B30US
car came in with a laundry list of issues, namely, a generally hacked together conversion and an unsightly wiring job. i tidied everything up (dressed the harness up with friction tape, deleted the automatic portion of the harness, installed the e30m3 wiring covers), eliminated the wiring harness adapter (installed a C101 on the engine harness), removed the intake manifold to change the fuel hoses and coolant hoses, and reinstalled everything.
went to go fire the engine and had nothing. had a verified ICV hum, but the CPS tested at almost 1000 ohms (spec is 10% of 565 ohms), and was an aftermarket piece of crap, so i bought a new OE unit from the dealer. still nothing. the fuel pump primes while cranking, so i removed the injector harness cover and found they had 12v, but no switched ground.
the car will fire up on starting fluid, but the injectors are not pulsing. i've never, ever, had spark but no fuel. always been double or nothing. i've torn my hair out all day trying to figure out what the hell is going on... nothing.
i've confirmed the following:
-verified good tach signal at the cluster, tested pins 16 and 43 at the x6000 for + and - signal, verified, new CPS tests at 559ohms, so i think the crank signal is fine
-verified 12v at all red power leads at both main DME and fuel pump relays
-verified 12v at both sides of the injector
-verified 12v at the coil packs
-verified ground at pins 6, 15, 28, 34, and 55 at the x6000, as well as the engine harness termination
-battery distribution block has 12v at the fuseable link and at the battery terminal
-installed known, good working 413 red label DME
welcoming educated suggestions. thanks, guys.
car came in with a laundry list of issues, namely, a generally hacked together conversion and an unsightly wiring job. i tidied everything up (dressed the harness up with friction tape, deleted the automatic portion of the harness, installed the e30m3 wiring covers), eliminated the wiring harness adapter (installed a C101 on the engine harness), removed the intake manifold to change the fuel hoses and coolant hoses, and reinstalled everything.
went to go fire the engine and had nothing. had a verified ICV hum, but the CPS tested at almost 1000 ohms (spec is 10% of 565 ohms), and was an aftermarket piece of crap, so i bought a new OE unit from the dealer. still nothing. the fuel pump primes while cranking, so i removed the injector harness cover and found they had 12v, but no switched ground.
the car will fire up on starting fluid, but the injectors are not pulsing. i've never, ever, had spark but no fuel. always been double or nothing. i've torn my hair out all day trying to figure out what the hell is going on... nothing.
i've confirmed the following:
-verified good tach signal at the cluster, tested pins 16 and 43 at the x6000 for + and - signal, verified, new CPS tests at 559ohms, so i think the crank signal is fine
-verified 12v at all red power leads at both main DME and fuel pump relays
-verified 12v at both sides of the injector
-verified 12v at the coil packs
-verified ground at pins 6, 15, 28, 34, and 55 at the x6000, as well as the engine harness termination
-battery distribution block has 12v at the fuseable link and at the battery terminal
-installed known, good working 413 red label DME
welcoming educated suggestions. thanks, guys.
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