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- 58,170
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- Preston Lancs.
Syncmate or a Nanocom but the Nanocom will be worth more than the car.
P38A Help needed to get doors open
- Thread starter EssexP38
- Start date
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Syncmate or a Nanocom but the Nanocom will be worth more than the car.
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- 31,263
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- North Shropshire
I thought no sync meant no spark?
Still learning here
- Posts
- 58,170
- Location
- Preston Lancs.
It means no fuel as far as i am aware. Maybe there are other reasons for the none start.
I noticed on another thread where someone suspected they had lost sync with the BECM and ECU that they had no "check engine" light come up.
I am getting the message come up when I turn the ignition on.
Before I give up hope of getting it running again is there any common problems you are aware of that could have happen whilst being parked up for a couple of years?
I must also say thank you for all the replies. This site has really helped over the years.
I am getting the message come up when I turn the ignition on.
Before I give up hope of getting it running again is there any common problems you are aware of that could have happen whilst being parked up for a couple of years?
I must also say thank you for all the replies. This site has really helped over the years.
- Posts
- 3,235
- Location
- Near Heathrow.
If it's turning over and has spark, then check fuel system is actually getting something. Pump should prime the system as soon as you turn the key.
If you have fuel pressure in the rails, then get a Noid Light to confirm the injectors are firing. Alternatively get a cheap circuit tester from Halfrauds. In both cases you should see flashing light when the injectors are firing. Take all the spark plugs out while checking the injectors, so the engine turns easily, plus you then get loads of oil circulation.
If it's stood a few years the fuel might be crappy as well.
Thank you for the reply. I think I may be onto something.... The fuel pump doesn't prime when the key is turned!
Any ideas why the pump isn't coming on when I turn the key?
- Posts
- 3,235
- Location
- Near Heathrow.
Given that you cannot confirm the BECM - GEMS Sync is ok or not, then check the following. To be honest I'm not sure if GEMS primes the fuel when out of sync. Clearly spark still works, but you don't know the sync status anyway.
Fuel Pump Relay
This relay is fed from the ignition relay and controlled
by the ECM (Z132). It is pulled in on ignition II
position to prime the fuel system. If the key remains
in the ignition II position, then the relay falls out after
a few seconds, precisely when determined by the ECM (Z132).
- Fuel Pump Relay RL12 - triggered by GEMS pin 24 (see below)
- Inertia Shutoff Switch X135 - behind RH Kick panel
- Fuel Pump actually getting 12V
Fuel Pump Relay
This relay is fed from the ignition relay and controlled
by the ECM (Z132). It is pulled in on ignition II
position to prime the fuel system. If the key remains
in the ignition II position, then the relay falls out after
a few seconds, precisely when determined by the ECM (Z132).
- Posts
- 58,170
- Location
- Preston Lancs.
The pump could be knackered, the inertia switch connectors could be corroded. Or of course the BECM could have lost sync with the engine ECU. You will have to have a play. Although thinking about it if it is GEMS and that happens it won't turn over. Thor will turn but not start.
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- 12,100
- Location
- Sud ouest France !
Can you use a separate power supply from the battery with a wire and power the fuel pump relay?
I had chance to have a bit more of a look...
The pump is definitely not working. I have taken off the pipe to the injector rail and there is nothing coming out when the ignition is turned onto any position.
It will briefly run when brake cleaner is sprayed into the air intake, so that proves its a fuel starvation issue causing it not to run.
I have check fuse 39 (manual states this is for the pump). I have also checked the big yellow relay is clicking when the ignition is turned to position 2.
Where do I find the "Inertia Shutoff Switch X135 - behind RH Kick panel" ?
Where is the pump power feed taken from?
Finally if the pump is knackered, am I right in thinking it means taking out the fuel tank to gain access?
The pump is definitely not working. I have taken off the pipe to the injector rail and there is nothing coming out when the ignition is turned onto any position.
It will briefly run when brake cleaner is sprayed into the air intake, so that proves its a fuel starvation issue causing it not to run.
I have check fuse 39 (manual states this is for the pump). I have also checked the big yellow relay is clicking when the ignition is turned to position 2.
Where do I find the "Inertia Shutoff Switch X135 - behind RH Kick panel" ?
Where is the pump power feed taken from?
Finally if the pump is knackered, am I right in thinking it means taking out the fuel tank to gain access?
tomcat59alan
Well-Known Member
- Posts
- 18,611
- Location
- wirral and triquivijate
Depends what your going to do with the car,if you just want to start it then cut the boot floor.if its a keeper then drop the tank.I had the same problem a while ago.standing for years and old fuel.this wax my pump.
Attachments
Henry_b
Think outside, no box required.
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- 15,351
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- somewhere else
4 bolts drops the tank IIRC
Much quicker and easier than ripping the carpet up to cut a big hole!!
Much quicker and easier than ripping the carpet up to cut a big hole!!
- Posts
- 12,100
- Location
- Sud ouest France !
Try another relay also to rule it out.
It can click but not make a good contact inside. Drop it don't cut it!!!
It can click but not make a good contact inside. Drop it don't cut it!!!
tomcat59alan
Well-Known Member
- Posts
- 18,611
- Location
- wirral and triquivijate
Just to update everyone who helped me out over the past couple of days....
It turned out to be a seized fuel pump.
An hour spent cutting the floor open to get the pump, followed by more time dismantling the pump to get to the actual motor. One tap on the side of the motor with a spanner and it starts buzzing away again!
I had left the car parked up over over a year with an empty fuel tank. I think this must be the reason the pump motor seized as it didn't have fuel to keep it "lubricated".
Thanks again for all the comments with suggestions, I am learning more about a P38 each day.
It turned out to be a seized fuel pump.
An hour spent cutting the floor open to get the pump, followed by more time dismantling the pump to get to the actual motor. One tap on the side of the motor with a spanner and it starts buzzing away again!
I had left the car parked up over over a year with an empty fuel tank. I think this must be the reason the pump motor seized as it didn't have fuel to keep it "lubricated".
Thanks again for all the comments with suggestions, I am learning more about a P38 each day.
- Posts
- 12,100
- Location
- Sud ouest France !
He cut the floor open...
tomcat59alan
Well-Known Member
- Posts
- 18,611
- Location
- wirral and triquivijate
He’s not the first
or the last.There happens to be a whole Fred about where to cut and get the fuel pump out.
Some don’t have lifts or pits to do it the easy way
J
tomcat59alan
Well-Known Member
- Posts
- 18,611
- Location
- wirral and triquivijate
I did mine on a pair of ramps and dropped the tank on a trolley jack.He’s not the first
There happens to be a whole Fred about where to cut and get the fuel pump out.
Some don’t have lifts or pits to do it the easy way
J
