MicroSquirt.com read only forum (Jan.15,2018)

I´m planning to ditch my ( (/&¤¤%/&)()=, lots of swearing) idle PWM valve that´s made by SOLEX, it´s of the solenoid type and it´s not working well with MS at all.

I´m going to lay my hands on a Bosch 0 280 140 501 , which is of the 3 pin rotating slide type which i belive is far superior.

Anyone has any experiences with this valve ?, i know people have with bosch 3 pin rotating slide valves but i just wanted to know if anyone had used THIS valve.

Just to inform, seems like after a short setup run it seems like this 3pin valve works perfectly on the electrical setup in the msns-e pages.

Have to get back to my basic settings since i´ve more or less made shure i now have REGULATION, which i have, in contrast to the other...valve.

Have you tested closed loop idle control yet? does it work? I have buyed 0 280 140 502 valve but not yet installed it. Hope it works right...

These valves are about "the same" as i understand it, the last 2 letters in the number is more or less how the inlet/outlet and the 3 pin connection plug is positioned on the valve so a 502 should technically be the same as my 501, i think...

And yes, the closed loop idle control works great really, but it seems to take som "fingertip feeling" when setting the values. It´s a GOOD help to have a "idle dc gauge" on the megatune front screen when observing what the valve does when setting the values.

I´m NOT finished with it yet , it works like a charm when warm now but it hunts a little bit when starting from dead cold engine, which stops after the engine gets over about 20 degrees C, so it´s porbably just a smaller adjustment.

My old solex(valeo) solenoid valve did not like working with MS at all, i just got it to open wide or stay dead shut closed... more or less. So this "rotating slide" valves is a VAST improvement.

For possible future reference, what is that ISV off of?

Mk1rocco wrote:For possible future reference, what is that ISV off of?

Sorry if i don´t follow ...

"what is that ISV off of?"

What is ISV short for ?, and what do you mean.

snillet wrote:What is ISV short for ?, and what do you mean.

Idle Stabilization Valve

Mk1rocco wrote:

snillet wrote:What is ISV short for ?, and what do you mean.

Idle Stabilization Valve

And what do you mean by "is ot off of" ?

What make and model car did that part originally come from?

Mk1rocco wrote:What make and model car did that part originally come from?

Ah , sorry.... english isn´t my native language

It came from a Citroen/Peugeot XU9M DDZ monopoint(TBI) 1.9liter 110hp engine.

Sits in som peugeot 309/405 and some citroen BX.