soontobered84

Can't quite figure the "Stepson" out. '84 Euro AT. The Fuse/Relay chart at 928GT shows that the relay for the fuel pump should be 928 615 113 01. Put that relay in and nothing happens. No fuel pump activity. Jumper at the fuse panel and the fuel pump powers right up and pumps until I manually turn it off.

I checked the black car (no good name for that one) which is also an '84 Euro although a 5 speed. It has generic 53 relay in the same spot for the fuel pump and runs just fine. If I put a generic 53 relay in the stepson, again nothing happens.

Looking at the fuse panel and the 928 615 113 01 relay, the fuse panel does not seem to have a connector where the 31 terminal is on the actual relay.

Can anybody shed some light on this for me?
Thanks

justin

John would a relay out of a USA car be the same?

byrdman454

The fuse/relay charts on 928gt.com are for US version 928 only. The Euro is comletely different. You will have to use the crude wiring diagrams to figure out which fuse/relay goes to which slot. I might have them written down somewhere is you do not have the diagrams. Let me know...

928euro

Funny enough...I did spend my afternoon yesterday with this panel. I also had troubles with this relay, with e.g. some "random" non-cut off of the engine with the contact key.

After many attempts to swap relays, I finally decide to have a look at the back (rather easy: 2 screws for the "mobile panel", 2 screws for the small bottom, and 2 screws for the fuses/relays panel).

And surprise, surprise... a "flying broken fuse" on the back connector.





I imagine... one of the spares (originally at the top), difficult to remove, that was "forgotten" when broken during removal (my guess...)

Good luck,

Eric

soontobered84

I don't believe the relays are the same. "84 Euros are kind of a different breed. It seems like they were a mixture of the '84/''85 cars. (LH injection etc)
I pulled my fuse panel to look behind for loose/broken wiring but couldn't find anything out of the ordinary besides more broken glass left over from the golf club incident.
Byrdman: What relay part number re you using for fuel pump?

ROG100

John,
I have 80, 82 & 83 Euro's all with relays if you want to swop some about.

byrdman454

Here is an email I got from Jeannie at 928 Specialist:

Ok, here are some part numbers and positions from PET for your 84 Euro to get you started:

I/II - 928.615.115.00 Rear Defroster

III - 141.951.253.B Window Opener

IV - not used

V - 1H0-953.227 Flasher

VI - 928.615.116.00 Window Opener

VII - 928.618.111.00 Headlight Washer System

VIII - EZF

IX - 928.618.109.00 Kick Down (auto)
928.615.125.01 Bridge (5-speed)

X - 141.951.253.B Horn

XI - 928.615.124.00 ABS

XII - 141.951.253.B Fog Light

XIII - 993.615.101.00 Wiper System

XIV - 141.951.253.B Starter (auto)
928.612.473.00 Bridge (5-speed)

XV - 928.618.113.01 Intensive Washers

XVI - 141.951.253.B LH-Jetronic

XVII - 141.951.253.B Fuel Pump

XVIII - 141.951.253.B Fan

XIX/XX - 928.618.107.02 Headlight

XXI - 141.951.253.B Blower

XXII - 141.951.253.B Defroster

soontobered84

Mike,
The problem I am having is that if I put a "53" relay in the XVII socket, the fuel pump still doesn't work. But this is all good information.
Thanks Roger, I can't wait to see your new stable of cars!

What I am thinking is that there is something upline from the relay that controls it's operation and maybe THAT is non-functioning because when I jumper the fuel pump it works fine.

Any ideas on that?

ROG100

John,
It may just be the relay you are using - can you test the relay?
Roger

byrdman454

John,
I was not sure if you are using the same relay for checking or not. The fuel relay on the Euro is used on many systems. Does the horn work? If so, remove the relay from X which is the horn and plug it into XVII. They are the same relay.

Jean-Louis

Did you check the injection brain? The brain control the relay I think, look at the electrical schematic, I don't have them with me right now.

soontobered84

Roger,
Not vouching for the relay, but it was brand new. I know, I know: It could be just a bad relay, but that's not really likely.
Byrdman,
I'll try the horn relay tonight.
Jean-Louis,
I have the manuals, but I'm not an electronic wizard and the '84 schematics are really confusing, but I do have an extra, extra injection controller, I think. I will have to find it if the previous checks show nothing else wrong.
Thanks for the thoughts on this guys.

soontobered84

Well, I swapped the horn relay (also a "53") which works the horn into the socket for the fuel pump relay. No go. Nothing changed. The fuel pump does not energize

soontobered84

Are there any relays back up the line from the fuel pump relay that could cause the problem? Some of the relays that are plugged into the sockets are currently generic "24" or "53" relays. My plan is to get with Roger this weekend to see what "real" relays will do.

soontobered84

After perusing the posting above that lists the Euro relay setup and then printing out a copy of the PET relay listings at Roger's(ROG100), I reconciled my fuse/relay panel to the two references. The PO had apparently substituted relays"24" for "253B" relays. I changed out the incorrect relays with "253B" relays and the doggone fuel pump will still not work without being jumpered.
Jumper it and the fuel pump comes on works like a champ and the car fires right up. Put a 253B relay in like everything calls for and the fuel pump doesn't come on and the car just turns over and doesn't fire.

Would it/Could it be something with the ignition switch?

Or does anyone have any other ideas?