"84 Euro Fuel pump relay
11-25-2006, 09:22 PM
#17
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John,
Try shorting together Pins Z4 & Z6. These are the switched pins from the alarm unit - and should be bridged if there is no alarm. Does you car have an alarm? is it functional? is it possibly in alarm (imobilizer) mode.
Alan
Try shorting together Pins Z4 & Z6. These are the switched pins from the alarm unit - and should be bridged if there is no alarm. Does you car have an alarm? is it functional? is it possibly in alarm (imobilizer) mode.
Alan
11-25-2006, 10:16 PM
#18
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Alan,
I have a long key but I have not seen any clue besides that of the presence of an alarm. I checked the Z plug and have a red, a blue, a brown, a black/white, a blue and another brown. None appear to be jumpered together up into the sub-harness.
I have a long key but I have not seen any clue besides that of the presence of an alarm. I checked the Z plug and have a red, a blue, a brown, a black/white, a blue and another brown. None appear to be jumpered together up into the sub-harness.
11-25-2006, 10:32 PM
#19
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John - so sounds like you do have an alarm, based both on the long key and lack of jumper on the Z plug (alarm only) - link pins Z4 & Z6 and see it will start - you can pull plug Z and make up a jumper with a 2 female quick disconnect connectors crimped to a wire If it starts this way then the alarm has either failed, is disconnected or is in active 'alert' mode (in which case you will probably also have a current drain you may want to debug this - or pull the whole alarm module).
Alan
Alan
11-25-2006, 10:46 PM
#20
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Alan, I tried jumpering Z4 & Z6- no start no fuel pump. I should leave the Z plug plugged in to jumper them, right?
I have no current drain besides the obligatory door safety lights and I have pulled those bulbs
I have no current drain besides the obligatory door safety lights and I have pulled those bulbs
Last edited by soontobered84; 11-25-2006 at 10:48 PM. Reason: additonal info
11-26-2006, 12:26 AM
#22
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Humm - check fuse 11 and try the jumper again if that was fried...
I don't thinks its the ignition swicth - since these circuits run off the 15 bus (not the X-Bus) and if the 15 bus is inactive - the LH won't work either... At least that's what seems most likely. Try wiggling the switch for good measure - does the dash light up in bulb check mode as normal with the ignition on?
Alan
I don't thinks its the ignition swicth - since these circuits run off the 15 bus (not the X-Bus) and if the 15 bus is inactive - the LH won't work either... At least that's what seems most likely. Try wiggling the switch for good measure - does the dash light up in bulb check mode as normal with the ignition on?
Alan
11-26-2006, 11:11 AM
#23
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I was going down the ignition switch route, however Alans suggestion of the alarm could be the culprit. Where is the alarm module on an 84?
__________________
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
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Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
11-26-2006, 10:07 PM
#24
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Alan et al,
I pulled the 11 fuse and rejumpered Z4 and Z6. Still a no go.
I also locked and unlocked both doors just for giggles but there was no change.
I have no idea where the alarm module is ,Roger
I pulled the 11 fuse and rejumpered Z4 and Z6. Still a no go.
I also locked and unlocked both doors just for giggles but there was no change.
I have no idea where the alarm module is ,Roger
11-28-2006, 02:05 PM
#28
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Roger,
We will discuss an ignition switch on Saturday. I want to drive it to Einstein's Saturday morning and then take it home and pull the pod again at which time I can replace ignition switch.
Can't wait to see your newest one!
We will discuss an ignition switch on Saturday. I want to drive it to Einstein's Saturday morning and then take it home and pull the pod again at which time I can replace ignition switch.
Can't wait to see your newest one!