Mass air sensor conversion? Volvo unit?

[ldzpstnr]

Hello.

I have been wondering about doing a Mass Air Sensor/meter conversion on my 325. The ones for a Volvo may work, it looks like the same plug and I am betting the injection system is close to or is the Motrnic system. I see BMP lists a Mass air sensor conversion for $900.... I want to do this a lot cheaper then that. Anyone tried this type of a conversion before?

 

[ldzpstnr]

Here is an example:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2470751522

 

[KC Ron Carter]

a little AFM to MAF information

I have a split second MAF on my M30.

I love it and it is great.

The issue is you will need a conversion unit for the signal of the MAF since it provides only a digital signal and the ECU is expecting an analog signal from the AFM. You also need to provide a temperature input.

Split Second uses a unit named arm1.

The controller, ARM1, is in the glove box, and is indexed to allow me to play with settings and get back to smooth running.

Here is the Ford 65mm MAF and it is made in JAPAN.

If this engine was shiny enough to reflect,
you would see me smiling while taking the pictures.
Cause I really like the output of the MAF.

Six hours, DIY, including the indicator and can switch back to AFM in 2 minutes, Two screw clamps on MAF, two quick electrical connectors and the OE connector is tie wrapped back out of the way.

OE is
3430cc M30
Motronic
DME II
92x86, 8.0:1
185bhp/5400rpm
214lb.ft/4000rpm


I own a dyno so here is the output at the wheels.

HP loss in transmission and differential 25%
So 222 HP at shaft is the result.


I am using the J C. chip also, a 3.71 ratio, with 265 Getrag.

The sweet spot of the m30 is now at 2200rpm where it was at 2800rpm.

That is the point where the rumble of the exhaust resonates in frequency with the intake. On the unmodified it is only seen on the cold mornings when the fuel system adds a little more fuel and the cold air is giving it's all.

I really like it.

Later,