ea82t 86 leone 3plug wiring diagram

Rhino82 · Post by **Rhino82** » Sun May 20, 2012 10:01 am

just reading through it al again, there are controls going in the the ecu for fuel pump and current control etc. i am running an inline fuel pump completly seperate from the ecu loom. will this cause problems, i dont have to have it running through the ecu do i?
just a thought.

cheers

Rhino82 · Post by **Rhino82** » Sun May 20, 2012 10:09 am

photos of plugs on motor

Gannon · Post by **Gannon** » Sun May 20, 2012 10:42 am

I cant see it causing issues.
I would like to know from somebody with an RX if the voltage to the fuel pump changes with load, as I cant see any other reason why the fuel pump ground would need to feed back through the ecu, and it is called fuel pump current control.
The second generation RX didnt have this, and turbo Liberty's and Impreza's didnt till 1998, when Subaru started doing this again to their turbo models

If you can connect a check engine light, this will tell us that the ECU is getting power and ground as the light should come on when key is in on position.

Rhino82 · Post by **Rhino82** » Sun May 20, 2012 12:48 pm

just traced the wires on the pin out you wrote up, quite a few differences to the one i have

firstly when it comes to wire color where you written L my wires are BLUE?

pin
04 has a yellow wire
18 has no wire
19 has no wire
20 has white(sheilded) wire

21 has no wire
22 has yellow wire with blue trace not yellow red
25 has no wire
30 has no wire
31 has blue green not BR as stated

49 has black wire
50 has blue red not white

havent found a diagram or pin out that suits this yet i am still looking, maybe this is new zealand omega wiring different from Oz?

cheers

Gannon · Post by **Gannon** » Sun May 20, 2012 6:25 pm

L is blue

So for example

YL is Yellow with a Blue trace.

LG is Blue with a Green trace.

Trace is the thin line of colour on a wire

steptoe · Post by **steptoe** » Sun May 20, 2012 7:21 pm

Gannon beat me to it.... the Gregories manuals use same codes I think, pretty universal auto electrical colour codes...... sorry, keeping you on ya toes

steptoe · Post by **steptoe** » Sun May 20, 2012 7:32 pm

a VIN is likely to help ID some more things if we can access the stuff. I am thinking the 3 door was a grey import from Japan as a used car. I still have to look at my ECU part number....

steptoe · Post by **steptoe** » Mon May 21, 2012 11:31 am

49 is a shielded ground so likely earthing the shielding for 50 to the ecu internals

Rhino82 · Post by **Rhino82** » Wed May 23, 2012 7:32 pm

hi again.

yup was using a led test light , still no visable `flicker`

check light in side of ecu show code 11, no ignition pulse?

what pin in the ecu needs ignition pulse?

cheers

Gannon · Post by **Gannon** » Wed May 23, 2012 8:56 pm

Ignition pulse should be pin 21 (no colour shown) but from memory it is a shielded. This wire also feeds the tachometer.

It comes from the negative side of the coil and is also connected to the ignitor unit in the distributor shown as 'D' in the first image

steptoe · Post by **steptoe** » Wed May 23, 2012 10:56 pm

is ignition pulse wire connected to neg side of coil?

you may ned to find a check connector that has nothing plugged into it, may be close to ecu in wiring loom is a 3x 3, three rows of three wires

the test wire for ig pulse is either a BY shielded at 0X0 of the top row, or Y shielded X00 of the bottom row.

if your pulse wire is connected to coil neg, with ign on , check between the wire X above and the BR wire ecu ground control ...if you get 12v says to replace ecu

Rhino82 · Post by **Rhino82** » Wed May 30, 2012 4:30 pm

well thank to you guys we now have injection pluse! was a stupid white wire in the standard black sheild tucked inside the loom we thought we had traced twice already but we obviously overlooked it, dork! haha

but reasonably confident the wiring is ok now just have to try time the dizzy again as we cant start it up haha

thanks alot its been a great help picking the brains of all you guys ha cheers!:o

steptoe · Post by **steptoe** » Wed May 30, 2012 6:14 pm

Ha , great stuff wire terminating at which ecu pin may we ask?

My trick in getting started with dizzy is something like get flywheel on TDC of number one compression stroke, now shift it to the 20 BTDC timing mark, #1 of dizzy should be closest to where a firewall would be if in a car and can then slip a 20 though feeler gauge between two bits in dizzy just before it is in spot wher it fires, if you get my drift

Rhino82 · Post by **Rhino82** » Sun Jun 03, 2012 6:42 pm

how did my crank case fill up with water!! so full it came out oil filler hhaha not ideal . is this a blown head gasket or intake manifold gasket?

had garden hose hooked up through were radiator wolud go while engine was running in my boat and am gessing pressure was to much and blew gasket even though tap was only just cracked open.

internet tel me it could be intake but i dont see how it gets into crank case...

please help haha

Gannon · Post by **Gannon** » Sun Jun 03, 2012 8:11 pm

Yeah it seems a lot more like a head gasket, i can't imagine water getting past the pistons without causing hydro lock.

steptoe · Post by **steptoe** » Sun Jun 03, 2012 9:06 pm

welch plug, welch plug, welch plug - pull a rocker cover off either side and there is three in the EA82 heads ? same count as EA81 , little buggers are 20mm in EA81, think it is same in EA82. The manifolds also have 10 or 12mm ones at the back that can leak outside the block. On a boat you are not gonna get tell tale drips giving the game away something is amiss. You will need somthing like a watchdog TM2 or TM4 .

Here is a link to a pic with water sitting at welch plug

showthread.php?t=20056&highlight=welch+plug

Gannon · Post by **Gannon** » Sun Jun 03, 2012 9:26 pm

These little known plus are most likely your culprit. I didn't even know they existed till jono brought them to our attention in that thread.

Brumby Kid · Post by **Brumby Kid** » Sun Jun 03, 2012 10:35 pm

We're are these welch plugs by the intake Jonno?
The 10-12 mm ones. EA81 or EA82?

Cheers Cam

Foghorn · Post by **Foghorn** » Mon Jun 04, 2012 12:22 am

I know it is a little off topic, seems like everyone has got you helped

but i would love to see a pic that shows the whole boat with motor shown sounds cool and would be interesting to see how you mounted it.

steptoe · Post by **steptoe** » Mon Jun 04, 2012 9:29 am

EA82 efi and spider inlets. You are safe with EA81 manifold and EA82 carbie I think. Yes, second that , pics of EA82 in boat and boat too please Rhino