Engine Swap in Nissan Sunny 1991 (B13)

[star2]

Can I feel any better?

But for me, its 4 wires more, in addition to countless that I'm gonna fix this weekend, IA

Car not running too good on petrol, mainly coz of one missing injector and that CNG air blockage. I don't get enough time for DIYs to fix things properly during working days

Good luck man, looking forward to it. By the way, do the injectors wiring like @xulfiqar said, like soldering them or pinning them again in the male injector of wiring harness. It is a steel pin, it comes out with some effort. You have to take part the male injector of harness, it consists of two plastic portions as far as I remember. Look out though.

[star2]

Can I feel any better?

But for me, its 4 wires more, in addition to countless that I'm gonna fix this weekend, IA

Car not running too good on petrol, mainly coz of one missing injector and that CNG air blockage. I don't get enough time for DIYs to fix things properly during working days

Good luck man, looking forward to it. By the way, do the injectors wiring like @xulfiqar said, like soldering them or pinning them again in the male injector of wiring harness. It is a steel pin, it comes out with some effort. You have to take part the male injector of harness, it consists of two plastic portions as far as I remember. Look out though.

[chevy09]

Pls guide me i am also going for engine swap in B13 1000CC with GA13EFI( Nissan )and what measure should be taken to check proper wiring

[IsbCap]

Pls guide me i am also going for engine swap in B13 1000CC with GA13EFI( Nissan )and what measure should be taken to check proper wiring

GA13 is available? Which city you are in?

Regarding wiring, I think you'll have to take care of it yourself after the swap is completed. Those guys will just replace the engine and start it by connecting the instrument wires as it is. From there on, you can do the wiring step by step, taking help from the experts in this forum

[chevy09]

I am in Lahore and buy complete Engine + gear +wiring

[afnan.bashir]

Yes Tape goes off in few days. It is necessary to use shrink sleve and do solder the wires, Few days back when i changed my connectors with fuse box i nearly soldered 40 wires and shrink sleved it, believe it its worth it. If the guy has cut the wire near the plug it is better to pry out the pin and open it with small screwdriver and put the wire again in it. Secondly in CNG Kits there is also two wires for O2 sensor, If you removed the emulator and havent connected the o2 back your engine would run like crap, do you have any check lights ?

[IsbCap]

I've connected the 4th injector wiring and it is running smooth now. Its still the poorest quality Nitto job, and I guess, I'll have to remove the whole wiring for properly making joints.

One question from experts:

Venturi placed inside the air flow path, meaning it blocks much of the air flow. Now this will increase the petrol consumption or decrease??? Any idea about the mechanism by which MAF signal is related to fuel injection???

[IsbCap]

If you removed the emulator and havent connected the o2 back your engine would run like crap, do you have any check lights ?

No dear, there wasn't any emulator before and after the $hit installation by that stupid installer. All he did was to cut the 4 injector wires coming from ECU side and connect the CNG one with the 4 wires actually going to the injectors. No relays, no emulators.

[IsbCap]

@star2

Got the circuit diagram for fuel pump and relay. And got that relay as well. Will try to fit it in today, IA

[star2]

@isbcap

Yeah, you can wire it up like this, and use the ASD relay for the fuel pump and use the correct wire from your ECU for fuel pump relay.

[star2]

@isbcap

Where are you man, what have you done with the fuel gauge and that fuel pipe protruding from an awkward place ?

[IsbCap]

@IsbCap

Where are you man, what have you done with the fuel gauge and that fuel pipe protruding from an awkward place ?

Well..... done nothing. You're right, the best way would be to install a complete fuel tank unit from B14, and I'm in no mood to spend a single penny on it in bits and pieces. So no oxygen pipes for it at the moment. Working fine from my standards, lol.

Regarding fuel gauge, I wanted to display the fuel level digitally in the dashboard. Had planned a visit to college road for obtaining the components for that. But then the curfew made sure it was delayed for one week.

[star2]

@isbcap

It is fine as far as you like it, but you've gotta take care of that fumes coming out in the cabin due to that improper fitting of cover on the tank, so at least do take care of that. You can also have problems if you fill it with fuel, it might come out from here and cause a nuisance.

[IsbCap]

@IsbCap

It is fine as far as you like it, but you've gotta take care of that fumes coming out in the cabin due to that improper fitting of cover on the tank, so at least do take care of that. You can also have problems if you fill it with fuel, it might come out from here and cause a nuisance.

Mechanic was talking about sealing that pipe last time. Will inspect it today if he actually did block that pipe. There used to be petrol smell in the cabin, which has gone after that job.

Will also remove the rear seat and inspect if any fumes/leakage are visible from the cover with the engine running.

[SER_GTR]

I've connected the 4th injector wiring and it is running smooth now. Its still the poorest quality Nitto job, and I guess, I'll have to remove the whole wiring for properly making joints.

One question from experts:

Venturi placed inside the air flow path, meaning it blocks much of the air flow. Now this will increase the petrol consumption or decrease??? Any idea about the mechanism by which MAF signal is related to fuel injection???

If There's O2 COnnected And Working...It Will Adjust Air FUel Mixtures But Your Performance Will Go Effected From That Blockage...!!!

If No O2...Then I Will Run Possibly RICH......

[IsbCap]

If There's O2 COnnected And Working...It Will Adjust Air FUel Mixtures But Your Performance Will Go Effected From That Blockage...!!!

If No O2...Then I Will Run Possibly RICH......

Is the encircled item the O2?

[SER_GTR]

Is the encircled item the O2?

NOOOOOO......Its Not

This Is Where It Installs....In Your Exhaust ..Near Manifold Or Underneath Car In Your Downpipe

And This Is How It Looks Like..

Its Called Oxygen Sensor Aka O2 Sensor Aka.....Desi MEchanics Don't Know WHat Thing It Is.......!! If You Saw It Hanging..You Can Explain Or If You Have Sample.....Don't Ask From Name Or You Will Got Looks Of Being ALIEN

[SER_GTR]

Comes In 1 2 3 And 4 Wires .......Depending On Manufacturer And Engine Type....!

Most Of NEwly Equipped Car Use 3 Or 4 Wire O2 Sensor..(Heater Type)

[atta1111]

This post was flagged by the community and is temporarily hidden.

[IsbCap]

This Is Where It Installs....In Your Exhaust ..Near Manifold Or Underneath Car In Your Downpipe

And This Is How It Looks Like..

This one resembles the one you posted???

This item got 3 wires.