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

Hiya,

Changed to TpsDot Threashold down to 10 %/s which has improved it somewhat but if i take it much lower the initial acceleration is great but as i build up revs it really starts caughing... Any ideas ??

Many thanks

Dave

Hiya,

Condensation may very well be produced in the exhaust, hot air hitting cold exhaust pipe and all. It also could be a leaking head gasket vaporising in the cylinder then recondensing further down the exhaust system. How long does waterdrip from the tail pipe for??

On a few cars i've worked on ...

Hiya guys,

Tuning is coming on very well now, VE table is set up and appears to be working well. The only problem i have is a slight hesitation on acceleration from idle noticable when pulling away or on a slow gear change, the car almost seams to 'buck'. I'm not sure which setting in the ...

Hiya guys,

Many thanks for your support, and apologies for my late reply, just got back from hols.

A good mate and i were looking at the car last night and noticed i have a dodgy plug lead..!!!! Can't believe i didnt notice it earlier. Hopefully when its replaced it will make tuning a bit more ...

Hiya guys,

I hate to admit defeat but complete dispair has set in now. I've been trying to tune my MS for the last 10 weeks now but to no avail. I really need to get the car back on the road, is there anyone near hertfordshire that could be persuaded to give me a big hand. Obviously you wold get ...

Hiya,

Spent this weekend removing pipework and inspecting all rubber hoses plus all associated gaskets. No leaks found....

Despair beginning to set in now....

Dave

Hiya mate,

thanks for your help, i raised the TPS threshold from 10 to 25 and the MAP threshold from 100 to 120. No difference i'm afraid...

Any other ideas??

Many thanks

Dave

Keithmac :

Hiya, thanks for the input. Unfortunatly i've tried tuning the rough idle out with the VE table to no avail. Really beginning to get me down now.

Just pulled a log, starts from warm, idle really nice & smooth, going to hot where its really lumpy. All at idle. If your interested pls have ...

Hiya,

OK i was wrong, i did initally install the 2.49k bias resistors...
Back to the drawing board...

Dave

Bens_cab,

When you built your megasquirt, what bias resistor did you install?
I've just realised if you installed anything but 2.49K Ohm you need to change the value in the 'calibrate thermistor' menu. I installed 2.2k Ohm therefore i need to change the value to 2200 ohms.

I'll try it tonight and ...