Can you run without an intercooler?

[kwlw]

... Motronic will run without intercooler, and without a pipe in its place. You'll have to disconnect the MAF plug, it'll run super rich (default value), but it will certainly get you home.

It is better to tow a car! Do you imagine how much damage dust and possible low rpms and high load will do to the engine?

Ask crankshaft bearings, they will tell you how they don't like that ...

Sau

[S2central.net]

... Motronic will run without intercooler, and without a pipe in its place. You'll have to disconnect the MAF plug, it'll run super rich (default value), but it will certainly get you home.

Huh ????

[~Delta]

Huh ????

What?

[S2central.net]

How does that work then ?

[S2central.net]

Just thinking about the time I blew a hose off between the MAF and throttle body. The car wouldn't idle for love nor money. True I didn't disconnect the MAF - I've got a vague memory about how Motronic has a workaround / limp home mode for that - something to do with rudimentary ignition settings at idle and part throttle. Oh heck - you got me now - I'll have to look up zee books...


Paul

[S2central.net]

Well the 3B book specifically mentions a limphome mode when the MAF fails. It runs with 20 degrees advance at part throttle and a fixed setting at idle. This relies on idle switch signals from the TPS. Curiously it states the mixture is leaned out and adaptation is turned off (natch) - I'd have thought plumping for richer might be better for drivehome, but there you go...

The AAN/ABY book isn't as detailed on this but I guess it would b the same approach. I've never tried this - bet it drives like a dog.

[kwlw]

Just thinking about the time I blew a hose off between the MAF and throttle body. The car wouldn't idle for love nor money. True I didn't disconnect the MAF - I've got a vague memory about how Motronic has a workaround / limp home mode for that - something to do with rudimentary ignition settings at idle and part throttle. Oh heck - you got me now - I'll have to look up zee books...
Paul

I've wrote situation in my post "My first boost leak ever", situation was, that hose from turbo dropped. And engine was sucking unmetered and UNFILTERED air.
Idle was so low - about 500rpm, oil pressure was very low also, and it seemed that injection is going in "series". I don't really think it is good for moving parts.

I was running only for twenty minutes or so, also with big oily intercooler, which should catch some dirt on it, acting as filter. I was so brave just because it was snow on the yard, you know, air pretty much clean. Running on the road without air filter - is just for those who like to rebuild the engine every 1000km, racers or so. It is not so hard to find some hose and clamps nowadays, because if you are not boosting, even pvc stuff which is used for toilets and co is suitable. You know, such various bends, etc. you can deal like lego which fit into each other.

Sau