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Starting problems

Posted: Wed Sep 28, 2016 9:26 pm
by Escy
I've just wired up an Audi 2.7t but i'm having problems getting it started. I picked up a couple of basemaps from others but they both had the firing order wrong. 1-3-4-2-6-5 on one and 1-3-4-6-2-5 both with an output offset of 3. The firing order is 1-4-3-6-2-5 with 0 output offset.

I've managed to get it started a few times but it cuts out after a few seconds usually (did get it to run for about a minute once with the revs pulsing up and down from 400-700rpm). I'm not having any consistency, i'm finding adjusting the cranking fuel table is not getting me the desired results either. I can go right from 0 to 20 m/s without so much as a cough or splutter from the engine, the fuel is getting in, I can smell it. The injectors are Bosch 750cc EV14

I'm thinking I must either have setting well off somewhere.

Any tips on what I can do to narrow down the problem?

Re: Starting problems

Posted: Thu Sep 29, 2016 4:31 am
by rockyboist
I am not a guru but I'd advise you to get the scope and logs for the pros here to chime in, they would normally need those to go through and advise appropriately.

Re: Starting problems

Posted: Thu Sep 29, 2016 2:35 pm
by Kisielisodd
startup map for our p&p connector Should work without any problem

Re: Starting problems

Posted: Thu Sep 29, 2016 8:13 pm
by Escy
Thanks, just had a look and I think that's a copy of the one i've got already. Unless something is going over my head, It's got the wrong firing order? It's also got ignition out cranking set-up for a 4 cylinder engine.

Image

Re: Starting problems

Posted: Mon Oct 03, 2016 10:29 am
by Kisielisodd
Yes You are right !!! firing order is wrong if map is not used with p&p connector. P&P connector use different outputs for different cylinders. ( for example cylinder number 6 is controlled with ignition output 2 ). This is because 2,7 p&p connector is common with 1.8 turbo engine.

Change firing order to 1 4 3 6 2 5 ane leave offset set to 3.

Re: Starting problems

Posted: Mon Oct 03, 2016 10:36 am
by Escy
I'm sorted now, thanks. I had a fuel leak inside the tank that was giving me trouble