A bit rich, sir??

Hey guys,

So finally my motor is rebuilt. (Will up the pics of the motor and all of the sh&t that came out of my "shrinking pistons engine")

Everything is in and wiring is connected, just 3 things:
1) When the motor starts, it runs a little bit rich - as in belches out clean petrol at the exhaust. What could make the ecu decide to overfuel so heavily?? Breathers?? I did forget to reconnect the AFM 😳 but after reconnecting the problem still persists.

2) I need the length/dimensions of the two bellhousing bolts at the top of the gearbox that turns into the back of the block. If anybody has a spare lying around that would also be a great help.

3) How can I set the timing? Will I need to use the special Nissan tool mentioned in the worshop manual or is there another way??

Plz help so that the thing can live again...

I think start by checking the ECU for fault codes, then you would have a relatively good idea where to start the fault finding.

Search the forum, there has been a whole post on the how to and codes for this.

if the engine temp sensor is not working right the ecu will go into a safe mode and richen up the map, i have had this with me

error code was 34

Will check the ecu error codes tonight maybe.

Now what about the bellhousing bolts and setting the timing??

OK, got error codes for knock sensor and TPS. Can understand the knock one but why there's a prob with TPS - I don't know. It appears as though one of the 3 wires in the plug is missing.....

Don't you justy love it when someone decides they know better than the manufacturer and just changes stuff...

Anyway - can anybody help with the length of the bellhousing bolts?

It could be the TPS then that's causing the over fuel, if a remember correctly there should be three wires, I think.

Sort out the knock sensor too, cause that would cause the ECU to retard the timing.

Im not sure about the bolts tho. 😕

OK, the car starts and runs (Thanks again, PFB).

1) I still want to know the length of the 2 upper bellhousing bolts

2) The car starts perfect in the morning. But after it has started it doesn't want to start again - it overfuels - if I bend the fuel line closed with my hand the car starts....what could be the prob. All 4 cylinders have fuel (injectors work) and spark and the fuel pressure is right (set to std pressure according to FSM) and the timing is also set correctly (15deg).

Is your fuel return line not blocked at all??

I have had this same thing before.

Yeah gary, didn't think about that - will check tonight to see. It makes sense if I think about it.

So I checked the fuel return line at it is not blocked. So the search continues...

for the Holy Grail