Mrbus Posted May 31, 2010 Share Posted May 31, 2010 Cant say anymore. Car was fine earlier. Went to start car, it started for a sec then died. Cant get fuel pump to work so im guessing its the relay as i remember someone saying that they always pack up Link to comment Share on other sites More sharing options...
blitzi Posted May 31, 2010 Share Posted May 31, 2010 u can still get these new m8 from any good auto electricians they are about £28.00 including the vat Link to comment Share on other sites More sharing options...
Quarter-Life-Crisis Posted May 31, 2010 Share Posted May 31, 2010 Is this the relay on the os inner wing? if so mine did the same thing. The solution was to give a it some gently taps. bit like knocking on somones door. (with your knuckles not a hammer) Sorted it! Link to comment Share on other sites More sharing options...
mantadoc Posted May 31, 2010 Share Posted May 31, 2010 2P trick, definitive answer Link to comment Share on other sites More sharing options...
Mrbus Posted May 31, 2010 Author Share Posted May 31, 2010 u can still get these new m8 from any good auto electricians they are about £28.00 including the vat Yeah i know. Just fought that £26 was a bit much for a relay. Tried the knocking trick hoping but still nothing. At least im pretty certain that this is the problem. Link to comment Share on other sites More sharing options...
garymanc Posted May 31, 2010 Share Posted May 31, 2010 have you tried the fuse ..... no 7 if my memory still works Link to comment Share on other sites More sharing options...
OPEL PARTS GREECE Posted June 1, 2010 Share Posted June 1, 2010 Also to some models there is an external fuse near the CU Link to comment Share on other sites More sharing options...
Mrbus Posted June 1, 2010 Author Share Posted June 1, 2010 have you tried the fuse ..... no 7 if my memory still works Yep, tried that. Just have to wait until my relay turns up. Local motor factors wanted £40 plus the vodka & tonic Got one off ebay for £27 Link to comment Share on other sites More sharing options...
mantadoc Posted June 1, 2010 Share Posted June 1, 2010 Would save guessing.......... http://forums.mantaclub.org/topic/12777-injection-relay-limp-home Link to comment Share on other sites More sharing options...
Mrbus Posted June 1, 2010 Author Share Posted June 1, 2010 Would save guessing.......... http://forums.mantac...relay-limp-home Yeah cheers. I fought i had to stick a wire in the plug on the o/s wing. Surely it says what the fuses are on the fuse cover Link to comment Share on other sites More sharing options...
garymanc Posted June 1, 2010 Share Posted June 1, 2010 The fuel pump runs through fuse 7 on a GTE, and those of you who have tried will know you can pull every fuse out of the box but 7 and a Manta will still run. So what's the point? Well if your injection relay goes you can usually limp home like this, a copper coin bridges either fuse 6 or 8 to 7 to power the fuel pump. Leave the injection relay in place when doing this or the injection won't run. Other uses: Ran out of fuel and don't want to flatten the battery cranking while you wait for pressure Emptying the tank / flushing new pipes Finding out which is the feed if you don't trust going by pipe position Some muppet connected an imobilizer / cut out switch badly Fuel pump live will back feed to ignition, so you can pull the key out and leave the car running Downsides, if its a poor connection the coin can get hot so don't melt the fuse box No warranty implied or given..... Link to comment Share on other sites More sharing options...
mantadoc Posted June 1, 2010 Share Posted June 1, 2010 Well said Gary Link to comment Share on other sites More sharing options...
garymanc Posted June 1, 2010 Share Posted June 1, 2010 Well said Gary you said it Link to comment Share on other sites More sharing options...
Fermanta Posted June 1, 2010 Share Posted June 1, 2010 (edited) That's a well known shoe in Manta circles ..... ^^^ Edited June 1, 2010 by Fermanta Link to comment Share on other sites More sharing options...
OPEL PARTS GREECE Posted June 2, 2010 Share Posted June 2, 2010 I like the coin nod Link to comment Share on other sites More sharing options...
mantadoc Posted June 2, 2010 Share Posted June 2, 2010 Link to comment Share on other sites More sharing options...
Mrbus Posted June 3, 2010 Author Share Posted June 3, 2010 The fuel pump runs through fuse 7 on a GTE, and those of you who have tried will know you can pull every fuse out of the box but 7 and a Manta will still run. So what's the point? Well if your injection relay goes you can usually limp home like this, a copper coin bridges either fuse 6 or 8 to 7 to power the fuel pump. Leave the injection relay in place when doing this or the injection won't run. Other uses: Ran out of fuel and don't want to flatten the battery cranking while you wait for pressure Emptying the tank / flushing new pipes Finding out which is the feed if you don't trust going by pipe position Some muppet connected an imobilizer / cut out switch badly Fuel pump live will back feed to ignition, so you can pull the key out and leave the car running Downsides, if its a poor connection the coin can get hot so don't melt the fuse box No warranty implied or given..... Ok so i did this coin trick & it started. I take it that is defo my fuel relay that needs replacing then? Link to comment Share on other sites More sharing options...
mantadoc Posted June 3, 2010 Share Posted June 3, 2010 What you've proven is the car isn't running the fuel pump without a coin in place. The most common cause of this and easiest to test is the fuel relay. You could potentially still have a wiring fault but I've not seen it come to that yet. If you have a look at the wiring diagram on the relay to see the switched terminals you should be able to prove a live exists and also check continuity with a volt lamp or meter as far as the fuse, but to be honest not worth the effort till you have a relay and once you have one probably won't be a problem. Save the old one, might be interesting to get to the bottom of the fault sometime. Link to comment Share on other sites More sharing options...
Fermanta Posted June 3, 2010 Share Posted June 3, 2010 :D Link to comment Share on other sites More sharing options...
Recommended Posts