General christmas for Chii

[bad_boy_cinq]

do you know which wire is for the fuel pump. ive got two left, one orange and one orange and green.

The fuel pump wire running from the fuel pump relay to the ECU is Orange.

 

[arc]

the fuel pump relay is part of the main fuel injection relay isn't it.

ive binned all that. i need the wire that goes from the fuel pump relay to the pump. the wire that actually powers the pump.

there are two that go from the main relay, to the loom and then they go into the connector that connect the engine loom to the body loom. one is orange, the other is orange and green.

 

[bad_boy_cinq]

the fuel pump relay is part of the main fuel injection relay isn't it.

ive binned all that. i need the wire that goes from the fuel pump relay to the pump. the wire that actually powers the pump.

there are two that go from the main relay, to the loom and then they go into the connector that connect the engine loom to the body loom. one is orange, the other is orange and green.

The wire thats goes from the relay to the pump is orange/black then connects to green/black.

 

[arc]

sure its not orange and green? i dont have an orange and black one!

is that the + feed for it then?

 

[bad_boy_cinq]

I can not see a orange/green wire on the diagram, only green/black, ill go and have a look at mine and see whats what.

 

[arc]

the diagrams aren't correct.

 

[rallycinq]

I am leaving the main relay in mine and using the fuel pump wire from the ECU to signal the relay, but remember, mine is OMEX not Megasquirt.

Cheers

D

 

[arc]

i have a seperate relay board containing the new relays, hence removing the standard ones

 

[arc]

orange and green wire runs to the pump. it comes out as green and black on the fuel pump. i checked it with a multimeter to make sure.

all wires traced and labelled:

got the relay board mounted, and began wiring it

 

[rallycinq]

Sure you want it there?

Cheers

D

 

[arc]

positive. all the wires reach there.

that isnt the ECU itself, only the relay board. It has all relay, fuses and conditioner circuits on it. The connector at the top links to the actual ECU which will be inside the car. That relay board, as it is, with no lid is fine for using in an engine bay.

 

[rallycinq]

OK, looks a little bit exposed to moi. I remember Citroen CXs with all the relays behind the headlights with corroded connections.

I would still be tempted to seal it in a plastic project box, but you probably don't get into the muck that I do.

Cheers

D

 

[arc]

i've considered sealing it, yeah. once i'm done wiring it it'll be coated in conformal coating to protect it from moisture - and i might look at modifying the casing to include a lid. i was dubious about it being exposed so looked into it.

Q: Which case is used for board mounting?

A: The Relay/Power board uses one half of a LMB EAS-200. The case comes apart in halves (top and bottom) when you remove the end plates. The Relay/Power PCB slides into one of the case halves, and is held in place with the end plates - one plate is cut in half and used on both sides. The top of the LMB case is not tall enough to clear the relays, so it is not used.

Q: So, this means that the top of the board is exposed?

A: Yes, but this is acceptable in a engine bay environment. The unit is mounted underhood, so the likelihood of accidential shorts, contacts to foriegn objects, etc. is the same as with any other engine component (starter, alternator, fuse block, etc). The PCB has a soldermask layer which will provide some protection, and the user can coat the finished board with conformal coating or polyurethane before mounting in the case. In addition, all circuits are fused, so an accidential contact will cause a fuse or polyswitch device to open. One thing to remember is to drill a small (1/8") hole in the bottom-side of the case to allow the escape of moisture from the backside of the PCB/case interior

 

[rallycinq]

When I built my Group A Manta we put the ECU in a large plastic lunch box, so we could get at it if neccessary, but it was well sealed when we didn't.

Cheers

D

 

[arc]

that'd do the job, but like you said before - this car won't be getting into as muck as your cars

 

[arc]

**** me i'm good. haha

i need to build the controller for the stepper motor, and plumb in the LC1 lambda controller - but other than that, engine loom is done.

 

[GhostWKD]

good job!.. top job infact!

 

[randomizered]

Looks a mess at the minute, but a good mess

the real test comes when you try to start it though


Kristian

 

[StoneNewt]

**** me i'm good.

Prefer not to thanks :yuck:

But nice work... I might have to join you in making a mess like that then getting it all tided up :bang:.

 

[SkinzCinqSporting]

Ooooo it's coming along nicely