no fuel no spark

[jrdeamicis]

So I am back on the Job. So do you have fuel pressure or does the pump just prime? You need to check that. If the pump is giving 40/50PSI while cranking its turning on the pump. (It only turns on while cranking).

Can you give me your wiring chart for your adapter. I want to check it.

[rotarievtec]

My pinout


c101
1 alt
2 oil level static
4 coolant temp
5 oil pressure
6 02
7 ign switch
8 fuel economy gauge
9 tach
10dynamic oil level
11 si reset
12 cel
13 fuel pump relay
14 speed signal output
15 starter
16 diag connector
18 ign 12v

x20
2 dynamic oil level
8 cel
12coolant temp
13 fuel pump relay
14 speedo signal
15 starter
16 static oil level
18 ign
19 diag connector
20 engine speed
21 ign
22 os
23 oil pressure
24 feul econo gauge
25 alternator


c101-x20
1-25
2-16
4-12
5-23
6-22
7-21
8-24
9-20
10-2
12-8
13-13
14-14
15-15
16-19
18-18

[jrdeamicis]

Check these pins for +12V

56
27
26
54


So wait, is your cam sensor a 3 wire or a 2 wire? The wiring diagram that I have for the non-vanos 525i engine says both are a VR sensor.

So pins 16+44 should be cam shaft sensor, look for milivolts while cranking. Also check your PN of the cam sensor and make sure you have the right one for your engine.

[rotarievtec]

Both my cam and crank are 3 wires and i dont have any spare 2 wire connectors on my harness. I will probe those wires when i get home. Do i probe 56 27 26 54 when cranking or just in run position?

[jrdeamicis]

Yes.

Do you have a wire in pin 42?

[rotarievtec]

Ill have to check when i get home. Is it cool if i give you a call again after i check all that stuff out?

[jrdeamicis]

Meter between pin 3 on both the cam and crank. You should see continuity. And I mean meter Pin 3 and Pin 3 @ the same time

[jrdeamicis]

Do you have a pin 10 in your x20?

Or a 65 in x6000?

[rotarievtec]

will do. Ill get back to you in a few hours with my results

[rotarievtec]

I do not have a pin 10 on my x20

[jrdeamicis]

Yes, I am just posting my questions so you can answer them later. Yes, You can call me and see if I am able to talk.

Are you using the same trigger wheel for a non-vanos? On the front timing cover.

[rotarievtec]

Thats kinda what i figured, this definantely give me a place to start. Yes same trigger wheel. I havent taken anything off the engine except for the a/c compressor and corresponding pulley on the crank. Trigger wheel never came off, not saying that the p.o. didnt do something funky.

[Matt-B]

tried switching cam and crank plugs? maybe there backwards?

[rotarievtec]

Ya already switched those too everything seems right but no spark.

[jrdeamicis]

1992
Engine Computer
BMW 325 i 0261-200-402,,,1748401-003-078 100409 $50 Flamingo Auto USA-FL(Homestead) E-mail 305-245-6183 956