[FinFan]

Hey all, so I as a project we dropped a g16b into a jimny with a g13bb motor. Conversion kit used etc.....Everything went fine with swaping parts etc....

Now when we have come to starting it will but wont fire. No back fire. Getting spark and fuel into injectors...it turns over but still no fire.

Any ideas on where to start....

p.s not really mechanically minded but can work through things.

ANy help would be appreciated.

Thanks

[watermouse]

Did you swap the camshaft and sensor housing from the G13bb to the G16b? They use a different cam angle sensor trigger arrangement on the back end of the camshaft. The 13bb ECU doesn't know what to do with the 16b trigger pattern.
Other than that, check your timing isn't 180 out.

[fordem]

FinFan wrote:

Getting spark and fuel into injectors...it turns over but still no fire.

Are you getting fuel out of the injectors? Have you tried running it on starting fluid?

What's the G16B out of, does it have a distributor, there are just so many variables here and so little detail.

[FinFan]

watermouse wrote:

Did you swap the camshaft and sensor housing from the G13bb to the G16b? They use a different cam angle sensor trigger arrangement on the back end of the camshaft. The 13bb ECU doesn't know what to do with the 16b trigger pattern.
Other than that, check your timing isn't 180 out.

Gees did not even think about that...is it a quick fix with the ECU and trigger pattern?

[Gwagensteve]

Which combination of EFI parts you've used would be the starting point for diagnostics.

[FinFan]

Hey all, sorry for the delay. Ok so at the beginning...

Had an Escudo truck which was hit by another car and twisted the body. Next I owned a 1999 jimny which I decided needed some more juice. So the process began. Using a conversion kit we swapped out the motors and dropped the G16b into the jimny removing the g13bb motor. We did everything that was supplied in the notes of the conversion kit. Covid then hit us and we were not able to freely move around the workshop. Project was placed to the side until a further appointment. Fast forward to now....we just changed out the 1300 injectors and put the 1600 ones in.
We did not change out the ECU not really realizing this could be an issue. Of note is we did not use the distibutor from old 1600 motor as it had DIS i believe its called.
Motor now will turn over with no back firing. It has good compression, has spark and injectors are feeding fuel. But wont start and run.....

Is there anything i've missed out?

I look for to your replies.

Thanks

[Gwagensteve]

I don't know what variant of G16B an Escudo truck would run, and I don't know where to start there as you haven't provided year.

If you didn't use the distributor that was on the Escudo, what are you using to fill the hole in the back of the head?

If the engine has spark and fuel it only needs air to run.... how are you confirming the engine has spark and fuel? Can you observe a spark while cranking? Can your hear the injectors ticking while cranking, or have you checked for function with a test light?

If the engine maintains injector function and spark while cranking, with a timing issue. On a G13BB, the engine determines timing from the crank angle sensor which is where the distributor would have been on the G16B.

[FinFan]

The motor was from a 94 escudo. Have held the spark plugs out to ensure a spark. Not heard the ticking of injectors....but plugs were not dry on removal after turning over. We placed the jimny cam senor on the rear of the motor. Would this sensor cause issues?
Thanks

[watermouse]

The Jimny sensor is what you need, you have that correct, but it also needs to have the jimny trigger wheel on the end of the cam for it to work. The easiest way is to swap the cam shaft from the g13bb engine over to the g16b. But TBH I am surprised you are getting a spark timing signal from the end of a cam that once drove a distributor, I am not sure what's going on there. Some pictures would be good.

Most people who do this swap (G16b into Jimny) use the coilpack Baleno engine as this variant is the most similar to the original g13bb, but a cam or trigger wheel swap is still needed.

[FinFan]

Sorry for the delayed message. No pc for a few days. So after reading posts and having a play with things. Turns out the timing was out. When we removed the cam the drive was slightly off and in my no mech mind it was ok....but yes it wasn't! Ok moving on.....put everything back together and had a grinding noise. The fly wheel cover at the back of the motor was incorrect and grinding on the flywheel as it turned. Removed and reshaped.
Everything back together again...filled with oil and water coolant and she fired up. Then it started leaking....should have replaced water pump. Removed water pump and it was all rusted and crappy inside. So as of today I am waiting for a new water pump in the mail.

[FinFan]

Running now. thaks for yourinu