Engine wont fire up!! - B16A in a concerto!

Printable View

Show 80 post(s) from this thread on one page

05-09-2006, 01:09 PM
XB-16-AX

Quote:

Originally Posted by CRXer

BUT this is the weird thing, while its cranking i can hear the main relay switching on and off quickly <-- is this normal? could my main relay possibly be farked? - but it was working fine b4 the engine conversion.No it should not be clicking rapidly,this seems like the prob.Recheck connections here,

Pin 1 = direct battery supply,thru ECU fuse in engine bay.
Pin 2 = ground,again, tee off black wire stated above for connection
Pin 3 = yell/black supply as discussed above many times.
Pin 4 or 6(depending on your relay) = supply off start position on ign switch(also goes to ECU pin B9)
Pin 5 = Supply off Ign 1 position on ign switch
Pin 7 = To fuel pump
Pin 8 = To ECU pin A7 (for fuel pump relay coil)

how do i check the PIN #'s on the main relay? all i can remember was:

YEL/WHT - ECU 15A
BLK/YEL - IG1
BLU/WHT - START Position
YEL/BLK - A15/A13 (IGN1/2 concerto ECU) and A25/B1 (IGP2 P30 ECU)
BLK - GRND A2/A4 (PG1/2 concerto ECU) and A23/A24 (PG1 P30 ECU)
GRN/BLK - A14/A12 (FUEL PUMP RELAY concerto ECU) and A7 (FLR1 fuel pump P30 ECU)
WHT/PUP - to O then ground ??

the above is how its wired up so far. but in regards to PIN7 & 8 wats the difference as they are both fuel pump? coz thats how my GRN/BLK above is setup.

I think my pin 7 is yell/black as well in crx,did u hook yell/black wire weve been discussing to this,instead of to pin 3 like it should be

Could it possibly be the way that my ignition to main relay is setup? - im just going off by the way the old ignition setup was.

I noticed that on the P30 ECU pinout it says IGP2 but my car does not have a IGP2, so the way the old ECU was setup with the 2 yellow/black wire was IGP1 <-- so this is where i connected the A25/B1 yellow/black wire, could this be why the engine wont fire up?Its just numbers for 2 connections of the ign.A25 & B1 should be bridged with that same ol' yell/blk wire off main relay.

Yeh the third plug is capped and has power in one of the wires.

dude my car is in my garage at north parramatta and yes it can be looked at after hours as im working as well. PM me if u can come around and give us a hand!!
05-09-2006, 01:58 PM
CRXer

Ok, sounds like u got same colour code as me.

Pin numbers on main relay can be seen next to or inside plug socket.If u didnt depin plug at all than should be still right.

Im confused over what uve done with fuel pump?
What is "WHT/PUP"?
Like i said my wire going to fuel pump is yell/blk.
Green/Blk is right if plug not depinned,so leave it.This wire is grounded by ecu to energise fuel pump relay coil(in main relay) thus allowing supply to the fuel pump thru the relay contacts coming out of yell/blk to fuel pump.If u have these 2 wires reversed,then this could be causing the relay to click,as the pump is in series with the coil.

Heres a pic of the crx relay pin numbers (integra relay on left for comparison of different 4 & 6 pins,in case your using similar)

http://i58.photobucket.com/albums/g2...G_1238_1_1.jpg

Having my own fuel pump probs atm,i'll see if i can fix it & come up tonight,stay tuned.
05-09-2006, 02:27 PM
XB-16-AX

Quote:

Originally Posted by CRXer

Ok, sounds like u got same colour code as me.

Pin numbers on main relay can be seen next to or inside plug socket.If u didnt depin plug at all than should be still right.

Im confused over what uve done with fuel pump?
What is "WHT/PUP"?
Like i said my wire going to fuel pump is yell/blk.
Green/Blk is right if plug not depinned,so leave it.This wire is grounded by ecu to energise fuel pump relay coil(in main relay) thus allowing supply to the fuel pump thru the relay contacts coming out of yell/blk to fuel pump.If u have these 2 wires reversed,then this could be causing the relay to click,as the pump is in series with the coil.

Heres a pic of the crx relay pin numbers (integra relay on left for comparison of different 4 & 6 pins,in case your using similar)

http://i58.photobucket.com/albums/g2...G_1238_1_1.jpg

Having my own fuel pump probs atm,i'll see if i can fix it & come up tonight,stay tuned.

GRN/BLK - A12/A14 (FUEL PUMP relay this is how its wired up on the concerto wiring diagram, the two wires bridges into one. and A7 (FLR1 fuel pump P30 ECU) - see diagram.
WHT/PUP - to O then ground ?? - as seen on top right of the diagram.

http://i78.photobucket.com/albums/j1.../Mainrelay.jpg

possibly u can be right, imma have to double check again ..as there was a wire on the concerto diagram A10 not shown on diagram but she goes back the to BLK/YEL of the main relay.

yeh dude hopefully u can come around tonight man as i need to get the car going asap.

here is my number 0406 610 637 give me a buz as i dont have the net at home only at work.
05-09-2006, 02:33 PM
XB-16-AX

Here is the complete Concerto ECU diagram

http://i78.photobucket.com/albums/j1...oncertoECU.jpg
05-09-2006, 03:06 PM
CRXer

Ok,back to square one,seems like u wired it up correct,colours slightly diff to mine),hard to get the yell/blks mixed up when one of yours is actually wht/pup.

The "O" is the fuel pump

Dont worry about the EGR(A10) valve.

Hows long has the fuel been sitting in your tank btw? I havent asked cos it sounds like it hasnt been that long.

Wont be able to drop round till after 8.30,if ok by u.
05-09-2006, 03:20 PM
XB-16-AX

Quote:

Originally Posted by CRXer

Ok,back to square one,seems like u wired it up correct,colours slightly diff to mine),hard to get the yell/blks mixed up when one of yours is actually wht/pup.

The "O" is the fuel pump

Dont worry about the EGR(A10) valve.

Hows long has the fuel been sitting in your tank btw? I havent asked cos it sounds like it hasnt been that long.

Wont be able to drop round till after 8.30,if ok by u.

well the funni thing is they way the fuel pump is wired up now seems to be ok, i can hear the pump and as i mentioned there is fuel pressure in the rails.

so yeh the "O" wtf is dat for? should i hook up the fuel wire to that?

fuel has only been sitting there when i dropped of the car to the mechanics which was almost 3weeks ago but its got about 10bucks worth of fuel ..

yeh anytime after 7pm is fine as i will be home by then.

i will be double checking the injectors to see if ive got a pulse too when i get home.

check ur pm for my number juzz incase u havent noted it down yet.
06-09-2006, 10:15 AM
XB-16-AX

PROBLEM NOW SOLVED!!

i knew it was some stupid ECU ground wire i overlooked at!!

But if it wasnt for CRXER!! i would be clueless!!

ALL THE PROPS to the man "CRXER"!!

and thanks to everyone else who helped out!!
12-09-2006, 04:14 PM
VT3C

Quote:

Originally Posted by CRXer

Firstly,take ELD wire out of your car & hook it up to the garbage bin.

THAT'S BAD ADVICE IF YOU RUNNING A JDM ECU !!!

ELD has 3 wires - one to the ECU, one GROUND and one to the PGMFI MAIN RELAY

ohh and thumbs up for doin a 'different' swap.. there's a B16A1 Concerto in Perth that's been kickin around for years but havnt seen it for a while.. can u say SLEEPA - whack some 'RSPCA' stickers on it etc..
12-09-2006, 04:20 PM
XB-16-AX

Quote:

Originally Posted by VT3C

THAT'S BAD ADVICE IF YOU RUNNING A JDM ECU !!!

ELD has 3 wires - one to the ECU, one GROUND and one to the PGMFI MAIN RELAY

From the ECU there is only one wire "D10 GRN/RED ELD electric load detector"

Remember were talking about just the ELD wire here ... and there is only 1 wire coming out of the ECU.
12-09-2006, 04:48 PM
VT3C

yes but you mis-read my wording.. the actual ELD itself is located in the bottom of a JDM under-hood fuse-box.. it has 3 wires from it that need to be connected.. the one to the ECU is fine and will make codes go away, but it wont actuate the function.. needs to have the wire running to the PGMFI MAIN RELAY in order to actually work. I've been driving my swap now for like 2 years+ however I have still not connected the wire to the Main Relay and my fuel consumption at idle and also my erratic idle is driving me insane HAHAHA.
12-09-2006, 04:51 PM
XB-16-AX

Quote:

Originally Posted by VT3C

yes but you mis-read my wording.. the actual ELD itself is located in the bottom of a JDM under-hood fuse-box.. it has 3 wires from it that need to be connected.. the one to the ECU is fine and will make codes go away, but it wont actuate the function.. needs to have the wire running to the PGMFI MAIN RELAY in order to actually work. I've been driving my swap now for like 2 years+ however I have still not connected the wire to the Main Relay and my fuel consumption at idle and also my erratic idle is driving me insane HAHAHA.

tru ... i actually ditched the EG fuse box ..and using the concerto ones .. havent had problems yet ..well hopefully not ..

can anyone confirm with hard evidence that this ELD wire will have some sort of effect in the current or future driving?
12-09-2006, 05:11 PM
CRXer

Quote:

Originally Posted by VT3C

THAT'S BAD ADVICE IF YOU RUNNING A JDM ECU !!!

ELD has 3 wires - one to the ECU, one GROUND and one to the PGMFI MAIN RELAY

Yeah sorry,bad advice:o

He should've made a nice bracelet out of it instead for his gf.

What a waste of good,colourful wire.........

I'm running a JDM ECU,no ELD,what exactly is your point,my car is idling fine or was up until the new hardware upgrade in which the ELD is now disabled in the software,now it still idles nicely.There is a little 100rpm dip when a large load switched on ,but it soon corrects itself.

Yes there are 3 wires connected to an ELD,but he doesnt have an ELD nor do I.So where do u suggest he hooks up the wire?

If no ELD dont need the 12V ignition supply off the main relay nor the ground.Nor will u need the 5V ref signal to the ecu.

Really not worth the trouble of swapping the main fuse box over to get an ELD or doing a crude shunt setup like i almost did the other day cos i was bored.Just make the nice bracelet instead..........

EDIT:sorry,hows the vehicle running Ryan,certainly an original?

Show 80 post(s) from this thread on one page