Hesitation/power loss on 3B cured

[dkw_dude]

Hi
My 3B S2 have been hesitating and not been as fast as it should lately (not the only one on this forum).

I have done the usual pressure testing+soap water splashing, had a small leak in the WGFV and replaced it, along with new O-rings on the injectors. This helped a little bit (some of the O-rings looked bad, should be replaced every now and then I guess), but the car was still hesitating and slow.

Then I measured the ambient pressure sensor as in this thread http://www.s2forum.com/forum/showthr...ressure+sensor
between pins 1 and 2 resistance was ~900 ohm, should have been around 1200 ohm (at sea level). I changed this component 3-4 months ago, so I took the old sensor which I have modified with a 1200 ohm resistor from pin 1 to 2 instead of the actual sensor circuit. And guess what, the car runs way better, close to what it should. The hesitation is more or less gone!

I don't know if this goes for all 3B engines, as I have a "no name" chipset, mapped on another car whith same mods as I have, but it may be worth checking out.

Cheers Leif-Helge

[afhgus]

intermitant power hesitation

Hi guys

Could this apply to RS2's? I have an intermittant power loss situation. Nothing shows up on a diagnostic test and I am desperate to find out what is causing it? Any ideas? Thanks in advance. Appreciate it

[91_S2]

Then I measured the ambient pressure sensor as in this thread http://www.s2forum.com/forum/showthr...ressure+sensor
between pins 1 and 2 resistance was ~900 ohm, should have been around 1200 ohm (at sea level). Cheers Leif-Helge

Leif-Helge,

On our LHD cars, where is that thing? Drivers side or passenger side?

[porkkis]

Inside passenger side a pillar.

Afhgus, could be.