Author Topic: Peugeot 106 XSI  (Read 23518 times)

Offline jeanno

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Re: Peugeot 106 XSI
« Reply #15 on: October 18, 2010, 02:12:32 am »
Last week the car has been mapped quickly for max performance.

Today i tuned idle with good results.

Here is the config file :
http://www.2shared.com/file/w-QFx-3L/v33_n001747-A-20101017-165526.html

Next step is to install VEMS ROUND AIM and a config switch in the car.
Then i will use the current map as a safe map and tune on the second config set for fuel saving with ego correction enabled
Project : Peugeot 106 Xsi 1992
Member page : http://www.vems.hu/wiki/index.php?page=MembersPage%2FJeanno
Engine is a tuned 1.6 litre 4 cyl / 8 valves (TU5J2) with 220 cc/min injectors fired individually+ wasted spark

Offline jeanno

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Re: Peugeot 106 XSI
« Reply #16 on: December 02, 2010, 11:28:16 pm »
I made some tuning mainly on VE map since last post.
The car is running well but two points can be improved :
I have to fine tune VE table (and probably lambda table) under 3000rpm, mainly around 2000 and 2700 rpm and 60-65kpa (iddle vacuum level) where the car runs rough.

The second point is cold starting in cold weather. With air temperature over 10°C, the engine starts on first attempt when cold or warm.
Winter is arrived in France and with the snow, the temperatures came down. Yesterday morning I had to try many time (about 10 attempts) to start the engine. This morning I made a log of this. It took 4 attemps to start.
Here is the log :
http://www.2shared.com/file/t-6jT7b7/v33_n001747-20101202-073008.html

What would you suggest to modify first ? Cranking cold enrichment ? Afterstart enrichment ? Probably cranking enrichment first as the engine idle is nice once started.
Any advise on first point is also welcome.
Thanks
Project : Peugeot 106 Xsi 1992
Member page : http://www.vems.hu/wiki/index.php?page=MembersPage%2FJeanno
Engine is a tuned 1.6 litre 4 cyl / 8 valves (TU5J2) with 220 cc/min injectors fired individually+ wasted spark

Offline rob@vems.co.uk

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Re: Peugeot 106 XSI
« Reply #17 on: December 03, 2010, 08:27:29 pm »
Definately cold-crank, I have a graph somewhere on here that shows how cold fuel requirements are almost exponential as the temperature drops.
Until now your cold cranking values will be a complete guess really.

Offline jeanno

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Re: Peugeot 106 XSI
« Reply #18 on: December 03, 2010, 11:44:34 pm »
Thanks Rob for your advise.
I will start with rising cold cranking enrichment.
Then I may also rise afterstart enrichment but make it shorter (less cycles).

I also made a log of cold start this morning.
http://www.2shared.com/file/dXOPt2PK/v33_n001747-20101203-073308.html
It took 4 attempts to start again but this time I managed to resist the temptation to play with throttle. :D
Project : Peugeot 106 Xsi 1992
Member page : http://www.vems.hu/wiki/index.php?page=MembersPage%2FJeanno
Engine is a tuned 1.6 litre 4 cyl / 8 valves (TU5J2) with 220 cc/min injectors fired individually+ wasted spark

Offline rob@vems.co.uk

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Re: Peugeot 106 XSI
« Reply #19 on: December 03, 2010, 11:47:38 pm »
Becareful to preserve the cold start settings that you have - as when the cold weather goes you may find that you have flooding issues.

Offline jeanno

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Re: Peugeot 106 XSI
« Reply #20 on: December 04, 2010, 12:00:44 am »
I will be careful.
I managed to store successive version of my settings for now.

Here are some pictures of my car and its engine to illustrate this post a bit.

The fully rebuilt 210000+ km engine :











The lightened and balanced crankshaft :



The Genboard in a "custm" case :



The 18 years old car :




Project : Peugeot 106 Xsi 1992
Member page : http://www.vems.hu/wiki/index.php?page=MembersPage%2FJeanno
Engine is a tuned 1.6 litre 4 cyl / 8 valves (TU5J2) with 220 cc/min injectors fired individually+ wasted spark

Offline jeanno

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Re: Peugeot 106 XSI
« Reply #21 on: December 31, 2010, 07:04:31 pm »
Since few days I have a strange behaviour of the ECU : When I power up the unit, the fuel pump primes and stop and then primes again and stop and so on forever.
Can someone explain this ? Bad wiring/grounding ?
Here is a log:
http://www.2shared.com/file/1T-V6dB-/v33_n001747-20101221-185527_CL.html

Apart from this "problem", the car runs fine.
Project : Peugeot 106 Xsi 1992
Member page : http://www.vems.hu/wiki/index.php?page=MembersPage%2FJeanno
Engine is a tuned 1.6 litre 4 cyl / 8 valves (TU5J2) with 220 cc/min injectors fired individually+ wasted spark

Offline mattias

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Re: Peugeot 106 XSI
« Reply #22 on: December 31, 2010, 07:51:49 pm »
If you check the rpm signal, there is probably a blip there every time the pump turns on (fuel pump relay). I'm guessing you use a VR/inductive sensor on the primary trigger input, a slight pull-up on the trigger input to 5 Volts (try 10k-20kOhm) externally can be tested to see if it removes the issue.

Indeed, the problem can be bad grounding - but can be hard to fix sometimes.

Offline jeanno

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Re: Peugeot 106 XSI
« Reply #23 on: December 31, 2010, 09:23:28 pm »
I will try a pull-up resistor.
Thanks!
Project : Peugeot 106 Xsi 1992
Member page : http://www.vems.hu/wiki/index.php?page=MembersPage%2FJeanno
Engine is a tuned 1.6 litre 4 cyl / 8 valves (TU5J2) with 220 cc/min injectors fired individually+ wasted spark

Offline McRae

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Re: Peugeot 106 XSI
« Reply #24 on: December 19, 2016, 12:16:15 am »
Do you have a link for your injectors 220cc please
« Last Edit: December 19, 2016, 12:27:48 am by McRae »