Fun in Le Mans

Re: Fun in Le Mans

feeds@yuku.com (mendamantis) — Wed, 08 Jul 2009 21:06:32 GMT

fuel system pressure at idle
vacuum hose attached ......................30 to 45 psi
vacuum hose detached.......................40 to 50 psi
fuel system hold pressure (after 5 mins)..........30 to 40 psi
fuel pump pressure maximum..........................65 psi
fuel pump hold pressure..................................50 psi

Injector resistance .........................................13.5 to 19 ohms

Re: Fun in Le Mans

feeds@yuku.com (Mixel Del Max) — Mon, 06 Jul 2009 09:15:49 GMT

Finally found a 'fried' wire behind the dashboard.
After replacing it (and all the other wires that were affected by the heat) the magic machine started again !!!!

SUCCESS !!!!!
...

Re: Fun in Le Mans

feeds@yuku.com (Gary Harman) — Tue, 30 Jun 2009 15:05:10 GMT

Have a look at the MANTIS ECU section as this should help as someone has managed to read the ECU.

Re: Fun in Le Mans

feeds@yuku.com (Mixel Del Max) — Tue, 30 Jun 2009 12:54:45 GMT

Just when I thought I had solved the problem of the reoccurring short circuit, it has started again !
I fixed the part that was loose (can anybody tell me what this thing on the picture is meant for ?) but to no avail.

Talking to local car electricians doesn't make me smile either:

Does...

Re: Fun in Le Mans

feeds@yuku.com (TC) — Mon, 29 Jun 2009 21:35:40 GMT

I also have a Red Key for my '97 Mantis - more by luck than anything else!

Re: Fun in Le Mans

feeds@yuku.com (Gary Harman) — Mon, 29 Jun 2009 18:57:32 GMT

I have a Red Key for my 97 Mantis, so when did they stop issueing the Red Keys???

Re: Fun in Le Mans

feeds@yuku.com (spyder) — Mon, 29 Jun 2009 18:38:35 GMT

Red keys where never issued from Marcos or from Ford for that matter after a certain date.
More importantly google the programming of new keys, as there is lot of info around how to get past the lost red key scenario!
You are not alone!

Re: Fun in Le Mans

feeds@yuku.com (tewitt) — Mon, 29 Jun 2009 15:35:04 GMT

you may be able to get a free running ecu try guy rogers 01773535638 . doesn't sound like the pats system to me souldn't even turnover. the transceiver doesn't use 12v and easy to get replacement from scrapyards,some fords have a pressure sensor on the fuel rail which the ecu reads and then clips the signal to the fuel pump to increase or reduce the speed of the pump,giving constant fuel pressure. the pats system works on the neg side of the pump so...

Re: Fun in Le Mans

feeds@yuku.com (martineztop) — Sat, 27 Jun 2009 08:33:10 GMT
sounds like it's turning expensive, you can get a new red key programmed but it's not cheap.
I think it may be time to call in an auto electrician to find the fault, it's probably something really simple but without the right tools you may never find it. It could even be an ecu fault.

Re: Fun in Le Mans

feeds@yuku.com (Mixel Del Max) — Thu, 25 Jun 2009 13:50:10 GMT
Thanks for the tip Quiffster, I will certainly contact Dave.

In the mean time, I have found out that the LaserLine had been disconnected before, and so we are down to the standard Ford Security system only.
The magic littlle glass tube is still looking good (and taped underneath the ignition because, for some reason, it was taken out of the key)
The receiver (around the ignition) has 4 wires coming into it, but none carry 12 V (maybe this is a problem ?)
The receiver...

Re: Fun in Le Mans

feeds@yuku.com (Jack) — Wed, 24 Jun 2009 18:29:27 GMT
You could always try a magnetic filter - not to be confused with those "increase your fuel efficiency" magnets. They do Magnet oil filter wraps too.
http://www.filtermag.co.uk/index.htm

Would be interested to know if anyone has tried these out? Does not look too useful on an old car as any muck is already in the system, but could be useful if the injectors are cleaned or the tank replaced.

Re: Fun in Le Mans

feeds@yuku.com (The Quiffster) — Wed, 24 Jun 2009 11:43:52 GMT
If still stuck, may be worth PMing Dave Chivers (Forum name "dchivers").

Good luck.

Re: Fun in Le Mans

feeds@yuku.com (spyder) — Tue, 23 Jun 2009 18:58:50 GMT
I also have had this exact same problem, but my Mantis is one of the supercharged ones so it may differ.
The fuel pump/electrics has 2 stages. Firstly, you turn the igntion on and the pump switches and primes the rails,when the cars fires the pump senses the pressure drops and cuts in and delivers fuel. It is this bit that is not working. You do need to buy a new pump. You may even have two pumps a primary and a secondary in this case replace the secondary.

On the subject of...

Re: Fun in Le Mans

feeds@yuku.com (zeke kaval) — Tue, 23 Jun 2009 17:41:45 GMT
Again sounds a bit like mine where there was also a short in the ford multipin socket that sits just below the windscreen, under the dash cover & directly behind the speedo. best thing to do is remove it and solder the respective connections together The good news is that's the only electrical shorts I've had

Re: Fun in Le Mans

feeds@yuku.com (mendamantis) — Tue, 23 Jun 2009 16:41:46 GMT
i would be surprised if it started if the imobiliser was working.
Haven't got a clue what the red led on top of the steering column is always wondered on mine but up to now its never come on.
Not much help I know.
Does it restart imediately and then cut out again or do you have to reset everything before it will restart.
When you say ignition and fuel are cutout how do you ignition has been cut, I assume you can hear the pump.
The car has 2 security systems one is...

Re: Fun in Le Mans

feeds@yuku.com (Mixel Del Max) — Tue, 23 Jun 2009 11:20:21 GMT

I found the cable that caused the fuse to blow (what a nighmare !) and fixed it.
Now, the fuelpump comes on with the ignition in position 1.
The engine even starts and runs for about 1 second and then both ignition and fuel pump are cut out.

Re: Fun in Le Mans

feeds@yuku.com (Mixel Del Max) — Sun, 21 Jun 2009 17:43:53 GMT

Things are never as simple as they look
Checked the fuelpump with an external power supply: works fine.(and an additional inlet filter had already been fitted)
Even with the fuel pump disconnected, the famous middle fuse keeps blowing.
The difficult task is now to find the reason for this....

Re: Fun in Le Mans

feeds@yuku.com (mendamantis) — Sun, 21 Jun 2009 16:35:26 GMT
The fuse in question is labelled main inj battery feed 20A %**#+%. The fuel pump 20A %**#+% is the one that is nearest the pedal box and closeat to the fron of the car, if you stand by the offside wheel the row closest to you and the farthest to the right.This fuse feeds 3 %**#+% wires. All according to the marcos wiring diagrams.
Not quite sure what the main inj battery feed actually is.

Re: Fun in Le Mans

feeds@yuku.com (zeke kaval) — Fri, 19 Jun 2009 20:58:52 GMT
are you 100% sure the pump is fried? I had a short on the front of the engine loom that kept blowing the same fuse...........

Re: Fun in Le Mans

feeds@yuku.com (Martyn123) — Fri, 19 Jun 2009 18:58:58 GMT
Hi,

Try these people http://www.alloyracingfabrications.com/ i've had stuff from them in the past,

Regards,

Martyn.........

Fun in Le Mans

feeds@yuku.com (Mixel Del Max) — Fri, 19 Jun 2009 11:34:07 GMT

A lovely weekend on the 24h race ended in a night on the side of a street just outside Le Mans.
The Mantis just 'gave up'.
All electrics seemed to work OK, but I decided to check the fuses anyway. (Difficult task in the pitch dark)
Found the middle one closest to the engine to have...