VN v6 engine into kart. Wiring help please

[kietalibby]

Hi all, I have put a vn v6 into a kart and I am trying to sort out the wiring and seem to have come to a dead end. So I am looking for some help.

Listed below is what I have done and found out.

- Conected up the standard loom.
-As there is no dash I have just used a couple of togel switches for the ignition barrel. (lots of excess wires and plugs)
- Fuel pump is hooked up and starts and stops with the relay. Running an efi pump and tank from an excel.
- I have run a test light on the injector and seems to me they are ok. light flickers on and off when the engine is turning over.
- I have tested the spark plugs and they are creating a spark
- I have taken off the air con unit and the power stering units. currently do not have a belt running arround it
- exaust oxygen sensor is conected.
- There is one plug that I can not seem to work out in the engine bay. Picture below.
- It seems like it is trying to fire on 1 cylinder only

It is puzzeling me in that there seems to be spark, fuel and air but no go.


Any help is apreciated.
Thanks

[wamboin23]

thats plug is for cruise control.

have you hooked up the check engine light and diagnostic plug? checking error codes would help.

[kietalibby]

I believe I have hooked up the diagnostic plug. As I said it has no dash so no I have not hooked up a check engine light. Which (of the many) wires should I use to create a check engine light? How do I check the error codes?

[ToMMMaY]

The real question here is WTF are you doing with a v6 engine in a kart LOL
thats cool dude

[kietalibby]

Guys, I have hooked up the check engine wires to a light and found that it comes on and stays on from acc, ignition and when I try to start it. As I have said I am a complete novice, what does this mean? How do I rectify it?

Any help is apreciated.

Thanks

[wamboin23]

it will come on and stay on when the engine is not running.

you need to bridge pins 5+6 in the diag plug, and then turn ignition on, and watch for the light flashing.

if you do a search for checking error codes, it will give you a list of what they mean.

[kietalibby]

Great thanks. I will give it a go and report back

[HCVP]

More to the point, i think we all want pictures !!!

[kietalibby]

Guys, Just had another look to try and diagrose the problem and have noticed that I do not have a diagnosis plug. Can you tell me which wires relate to the 5th and 6th pins.

On the wiring diagrame I have it does not have a specified diagnosis plug but does have a DFI module? where would the plug / wires be in the wiring loom?

Will it make any difference if I do not have a plug?

Thanks

[Brett_jjj]

Theres a White/Black trace wire that goes from the ECU connector terminal D6 to the diagnostic connector, this wire needs to be temporarily earthed out to put the ECU into diagnostic mode.

[304runner]

Stuff the pictures of the plug, I wanna see pictures of the Kart!

[kietalibby]

Theres a White/Black trace wire that goes from the ECU connector terminal D6 to the diagnostic connector, this wire needs to be temporarily earthed out to put the ECU into diagnostic mode.

OK so if I temporarily earth the D6, then which wires do I use to diagnose the error?

[kietalibby]

Hey I just looked at the diagram and also had a look at the wiring and D6 is a black wire that is already earthed?

[Brett_jjj]

Sorry mate, the manual I got that info from doesnt have the ECU pins marked clearly, it looks like it says D6 but obviously it isnt that one, so Ive just checked out another VN ECU pinout diagram, and the ECU terminal pin number you need to earth is A9 which should be a White/black wire. Also ECU terminal A5 should be a Brown/white wire and this is the wire that goes to the check engine light on the dash.

[kietalibby]

So if I earth the A9 wire, set up a glob on the A5 (Brown/white) wire and the Pink/black wire that runs out of fuse No.9 this glob will flash to give me the error code?

Thanks.

[wamboin23]

yep. spot on

[kietalibby]

ok I will give it a go tomorrow night after work.

Thanks

[Brett_jjj]

Theres also a couple of other things I noticed that might be handy to know. Theres an Orange/black wire that goes to both ECU terminals B1 and C16, this wire comes from the 30 amp "eng comp" fusible link, so Id say this is the main power feed for the ECU. Theres also a Pink wire that goes from ECU terminal A6. This goes to the bypass switch for the immobiliser (if ones fitted), it also connects to the DFI module terminal P. Also it goes to the EFI relay pin number 86, and it also goes to fuse number 11, its Pink wire to each item.

[kietalibby]

Guys, I have done what you have told me and the light flashed over and over. There was about a 4 sec space then one flash then about 2 sec gap and the two flashes, this just kept repeating. Amy right to assume that this means error code 12?

[kietalibby]

I just did a serch on the engine code 12. Is said "no spark pulse at CPU or else good system, no code" What does that mean? there is a spark at the spark plugs.

[vpcalais6]

I just did a serch on the engine code 12. Is said "no spark pulse at CPU or else good system, no code" What does that mean? there is a spark at the spark plugs.

It means you should put pics up of the kart

[kietalibby]

I was just looking at another website that showed that code 12 is system pass (ok)???

Can any one please confirm, if so it seems like I am back to the start where the engine will not start?

[Brett_jjj]

Yep, code 12 means theres no codes logged and its all good. Just remember though that these codes will be erased from the ECU's memory every time the ECU is disconnected from the power.

[kietalibby]

Guys, since there seems to be no problem electricaly the only part that i have used that is not out of a vn is the fuel tank and pump that is out of a fuel injected hyundai excel. would this make any difference?

[wamboin23]

even if the pump wasn't big enough, it would still run on idle, may just lean out under load.

are the fuel lines on the right way around? i made this mistake once, and it would go at all.