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 Fuel relay not priming
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huwwatkins
Site Subscriber

Joined: 10 Jun 2004
Posts: 2317

Posted: Sun Apr 10, 2005 12:57 pm

Primary suspect...the relay? Took the 16v out for a test, started and drove fine, got in to town and pulled in to fill up. Car wouldnt start....cranking but nothing. Looked right a like muppet sat on me own on the forcort with the bonnet up Laughing
Xvisor
Level 7 User

Joined: 06 Sep 2004
Posts: 230

Posted: Sun Apr 10, 2005 2:30 pm

You stopped filled up wanted to start and it didn't?? could indeed be relay or maybe wiring. I does give ya some Embarassed when such thing happens don't it? Wink
huwwatkins
Site Subscriber

Joined: 10 Jun 2004
Posts: 2317

Posted: Sun Apr 10, 2005 2:55 pm

Yeah. Im thinking its either a) the relay or b)the factory fit immobiliser which sometimes cuts all electrics to the car when it feels like it. If anyone knows how to remove this....
Xvisor
Level 7 User

Joined: 06 Sep 2004
Posts: 230

Posted: Sun Apr 10, 2005 3:04 pm

Prob time to remove that imob indeed! Chris knows, he done it X times I believe!
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Mon Apr 11, 2005 12:27 am

is the factory fit immob the key in the glovebox one or the later plip activated one? Later plip one is scotch locks in the dash, it was the megane before they integrated it properly.

Anyway cranking but nothing, what does that mean? Was it sparking? Was th epump running (did yo ulisten for it) and so on.
Xvisor
Level 7 User

Joined: 06 Sep 2004
Posts: 230

Posted: Mon Apr 11, 2005 1:09 am

Didn't he mean by the topic name he already checked for it priming??
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Mon Apr 11, 2005 1:17 am

he never said it wasn't priming, he asked if that was the problem!
Addie
Site Subscriber

Joined: 05 Apr 2004
Posts: 1141

Posted: Mon Apr 11, 2005 1:23 am

The fuel pump relay was replaced by Ben when I bought the car from him.

I turned up to buy it - she cranked, she had a spark (take a lead out stick a screwdriver in it and see if the sparks on the block when you crank). If it does, I'd assume the fuel relay has failed again. Although I could be wrong and the immob cuts the spark too?

I'd replace the relay again as the first port of call (I'll have a look at the scappers today) and then go for the immob, the fiddly little bugger that it is.
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Mon Apr 11, 2005 1:27 am

tbh I have yet tpo come across a renault fuel pump relay failure.

Volvos go through them once a month and so on but never had a renautl problem.

If its going through them i would look at a wiring problem.

The immob if its th ekey in the glovebox effort only cuts the fuel pump but its so simple that it shouldn't cause a problem unless the wires are loose where it splices in.
huwwatkins
Site Subscriber

Joined: 10 Jun 2004
Posts: 2317

Posted: Mon Apr 11, 2005 2:20 am

Its the later plip activated alarm. Sometimes when i turn the key to start all power is cut to the car, thought this might be linked?
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Mon Apr 11, 2005 2:31 am

either the immob or the ignition switch
huwwatkins
Site Subscriber

Joined: 10 Jun 2004
Posts: 2317

Posted: Mon Apr 11, 2005 4:31 am

Im guessing its the immob as disconnecting the patter pos terminal and reconnecting it instantly solves the problem...
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Mon Apr 11, 2005 4:32 am

well get checking then.
Addie
Site Subscriber

Joined: 05 Apr 2004
Posts: 1141

Posted: Mon Apr 11, 2005 5:41 am

So no need for me to go scowering scrap yards for relays tomorrow? I'll try and get one anyway so we can rule that one out maybe.

An auto electrican should be able to tell you - I can't see how a mechanical immobliser would be reset by disconnecting and reconnecting the battery as its a physical break in the circut.

Does it crank?
Does it spark on the block?
Leigh_f
Site Subscriber

Joined: 01 Mar 2004
Posts: 458

Posted: Mon Apr 11, 2005 6:26 am

You can brdge the fuel pump, i had to do this once to get home from work when my relay went can't remember what pins it is and can't look as i'm working , someone else could tell you. that way if it fires when bridged it's your relay.
huwwatkins
Site Subscriber

Joined: 10 Jun 2004
Posts: 2317

Posted: Mon Apr 11, 2005 11:13 am

Would the immob have somthing to do with all power being cut to the car on ignition? By this i mean everything, lights, indicators doors the lot. its done it once while driving too....not fun.
Wicked Neo
FCS Event Manager

Joined: 04 Jan 2005
Posts: 3680

Posted: Mon Apr 11, 2005 11:20 am

immob wont cut off power to lights, doors etc.

even if the immob wont unlock, you will still have power to the lights, windows, etc
if you are suffering with complete electrical failure, first place to start looking is the battery, is it secure, are the terminals tightened up etc.
Leigh_f
Site Subscriber

Joined: 01 Mar 2004
Posts: 458

Posted: Tue Apr 12, 2005 1:11 am

my immobiliser (aftermarket) stops the windows, dash lights, and gauges but stereo and heaters still work, wierd set up!
JB
Mr Quoter-vator

Joined: 16 Feb 2004
Posts: 7405

Posted: Tue Apr 12, 2005 1:15 am

my immob (working correctly) kills the fuel pump and stops it from cranking...everything else works....cobra system
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Tue Apr 12, 2005 1:16 am

thats how its meant to work JB.

An immobiliser cuts 2 circuits to get thatcham approved.

Fuel pump and starter.
JB
Mr Quoter-vator

Joined: 16 Feb 2004
Posts: 7405

Posted: Tue Apr 12, 2005 1:18 am

aye, came with the car, quite happy with that.

fuck knows whats on the hatch...there are 2 boxes under the gearstick housing...a receipt for an alarm/immob but god knows what is actually currently installed and working...

it has a thing on the column housing that i touch with a keyring to deactivate the immob...which works...

i guess ill just send em the receipt for the alarm/immob when it comes to insure it Very Happy ignorance is bliss
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