Mk1 golf DTA ECU wiring

Well that'll be me bowing out of further comments on this one, and maybe other areas where it can be pointed out I don't know what I am talking about. I thought I was adding info/knowledge/opinion to this forum, but maybe not
Jon

 

Ok so assuming I have a sensible map (It was designed for a 16vt engine whereas mine is a 16vg60) is there any reason I can't get it starting from cold and ran in keeping a close eye on lambda, oil pressure and coolant temps? Taking it fairly easy before taking it to be set up professionally?.

 

Hopefully we can continue with a healthy input from you more experienced members here and I'd just like to say thanks to jon, toyo and rubberjohnny who have helped massively by sharing their experience and knowledge on my post. Hopefully that can continue without anyone stepping on anyone else's toes so to speak as that would be a shame. I agree sometimes playing devils advocate can force you to consider the other side of the coin which is sometimes useful.

 

Forgot to ask toyo is there any reason the LC-1 controller is not your preferred choice?

 

dani: would have been useful to mention your application was forced induction in post 1.
Jon

 

It has been mentioned throughout this thread but another reminder would have helped agreed.

 

Only read the last couple of pages, so will have missed it, oh umm
Jon

 

The sensor is fine. The controller seems to be poor at sensor heater control leading to sensor failure.
Just keep an eye on it. They might have solved that problem by now.

 

Ok thanks. So in reference to my earlier query do you see any issue with me getting the car running and running it in before taking it to a professional?.

 

Often opinions on engine set up are based on user feel, trial and error and experiences good or bad. They are subjective which can be a good or a bad thing. I am part like that also.
However during engine running, there are operating principles at play regardless of our opinion or experience. Once you understand those principles, trial and error or guesswork can be considerably reduced.
The operating principles are what I take time to understand and validate in a controlled manner. This + some old skool experience helps to influence the final result of an SEM engine map that I deliver on any engine.
Further I am not speaking about just WOT testing, carburetors or globally adjusting a dizzy +/- 2 degs but the full control of fuel or spark at any load and at any engine speed to yield the best torque.

I am all up for challenging certain operating principles but please bring data! Lots of it!

 

The map that Alex sends out is good to configure the type of engine its sensors. phasing and the outputs if similar to his. This saves time for the mapper.
If the injectors you run are different to his in brand, or flow, your fuel control will be different and cold starting would be compromised for the base map.
Your tuner can sort this out.
The engine can be run in on the dyno and once finished, you can add more miles on it to reduce the friction.
You can ask you tuner about what I suggested about break in and let him decide.

 

My plan was to configure the software as best I can to suit the sensors and fuel pressure that I will be running.
I've been reading into setting general engine settings in preparation for starting. The crankshaft oscilloscope feature looks useful and will help with making sure I'm getting good data from my crank sensor. I will also calibrate my tps for wot and closed throttle. Check that feedback from coolant sensors is good and that i have good oil pressure. I've converted to a coilpack which is a Ford gen 2 and will set it to wasted spark mode.
I've sent an email to sparrow who I believe is Alex from DTA need to check what injectors and fuel pressure he was running with the map he sent me. I recall it was the same Bosch 440cc units as mine but I will verify this before going any further. I understand what you mean, the map will be pretty useless if it was based on a car running different injectors and or fuel pressure.

 

It would be useless to control the engine effectively, but an excellent start than having to start from scratch.
The mapping guy will know what to do.

 

So long as it's safe enough for.me to start the engine I can at least get it along to someone that knows what they are doing. Id like to be able to nurse it through the running in process but maybe I have to admit to myself that it's too risky and best trusted to the pros.

 

It should be fine to start. If closed loop is on in the map I sent you, the LC-1 should keep things reasonable.

 

Ok thanks. So if you had 4 bar fuel pressure I guess I'll need to set mine the same to keep things as close to your set up as possible.

 

To come closer to sparrow's hardware set up yes you would if it is not already that way.

 

I'll make sure it is then. Is 4 bar a reasonable long term setting?

 

No. I would rather run a 3 bar FPR from the start.
Why? Sizes the injectors for lowest reference pressure and in the event you need more boost does not overburden the fuel supply (3bar+ boost pressure vs 4bar+boost pressure).

 

Yes that makes sense. There is every chance that further down the line a more efficient supercharger may be used over the g ladder. I've heard good things about the rotrex units.
The rolling road gave me this response;

rollers 95 per hour plus vat probably 4 o5 hours or you could have 2 hours
to rough a map out for you to run it in then 2 or 3 hours to finish it /
would be better checked before you drive it

2 to 3 hours to finish it doesn't sound like a lot but I don't know much about these things. The specialist who I had planned to take it to mentioned they would want the car for at least 2 days. Quite a difference. Would it not need to be road tested along with being set up on the rolling road? Or can all conditions be simulated.

I've been reading about throttle transients and wondered how difficult these are to set?. I won't be setting them myself but I'm just curious to know what are the most difficult things to set up? Maybe some of the experiences tuners out there can comment?