Messages

1

Engine management / ostrich 2.0 with ITB's

« on: February 21, 2013, 02:51:17 PM »

I dont have that option on my xdf.

Ill check the other xdf i have from the tunerpro site.  It has a few things my current xdf doesnt have.  Fyi 175ecu

I have, but not sure if it is working. It has 4 tables....
175 ecu with 378 software

2

Engine management / ostrich 2.0 with ITB's

« on: February 20, 2013, 03:06:34 AM »

The ECU most definitely does use the AFM at WOT. Believe me, I know from my experiences designing & tuning my MAF conversion! If you have the settings wrong and the ECU sees a bad air flow signal, you will run super rich or lean at WOT, which would not happen if it was ignoring that input. It uses both the AFM and IAT signals at WOT. If it was just using throttle position and RPM to look up fuel table bins, it would be more of an Alpha-N setup, which it is not.

Hi!

This is interesting, because the WOT map don't have a load axis, it's a table with one column.

Has anyone tried the acceleration enrichment yet?

3

Engine management / "No-lambda" - downgrade

« on: February 17, 2013, 05:14:37 AM »

Hi,

My e30 m42 can't run without o2 sensor. Idle stalls and it has no power while driving. That's my experience with it.

4

Engine management / Where to start with no idea

« on: January 06, 2013, 12:27:13 PM »

Hi,

If the engine is running NA you don't really need a standalone engine management system. What cams do you have?

5

Engine management / wierd oxigen sensor problem

« on: January 03, 2013, 03:23:24 PM »

Hi,

I've installed my wbo today. First of all, I used an old nbo's plug
 for the simulated nbo output. The problem is the plug cannot go into
 the opposite plug, so I have to make it connect.
 
I thought that the car will run without the stock nbo sensor, but it
 can't! If the engine runs at idle speed, tha AFR is pulsing then it
 goes slowly upto 20AFR and after that the enginge stops. When the AFR
 is higher than 15 the eginge can't run smooth,the rpm stalls and the
 engine suffers. I tried to plug in the stock nbo, while it was hanging
 in the engine bay, so it actually wasn't in the exhaust pipe and very
 very surprisingly the engine runs smooth! Even when driving the car
 everything is just the same as before, when the nbo was in the pipe!
 How could this work?
 If I unplug the nbo, driving is not smooth, the AFR is very lean and
 it's hard to accelarate. When I plug it back in, it's smooth. All this
 while the nbo is hanging in free air!
 
 I have a 3.5bar (50.7psi) fuel pressure regulator
 instead of the stock 3bar (43.5psi). I felt the enginge is running
 rich, because the muffler tip is always black and the fuel consuption
 is a bit high I think. So at idle the AFR is about 12-13. When I
 drive idle at 2000 or 25000rpm at a steady rpm, the afr is between
 10-11. Its very rich I think!
 
What do you think? Why can't it run without an nbo even if it isn't in the exhaust?

6

M42 Reference / E30 318is Electrical Manual

« on: November 27, 2012, 02:49:40 PM »

Well done! Thanks!

7

Electrical / oxigen sensor pinuot

« on: November 26, 2012, 06:08:13 AM »

Thanks!

8

Electrical / oxigen sensor pinuot

« on: November 25, 2012, 02:25:55 PM »

Hi!

I'd like to know what's the pinout of the stock oxigen sensor in an E30 M42.
I have a round connector with two white, a grey and a black wire.
Plz input.
Thanks!

9

Swaps, Turbos, Buildups / AFM to MAP conversion

« on: November 10, 2012, 02:01:36 PM »

Hi,

Thanks, I'll check the other topic. I'd like to build some itb's, so I just thought of a map sensor rather than the stock AFM.

10

Swaps, Turbos, Buildups / AFM to MAP conversion

« on: November 10, 2012, 01:07:28 PM »

Hi!

Has anyone done a stock AFM to MAP conversion with stock DME? I think the AFM has a 0-4.5V linear output, what about a map sensor?

Maybe it be changed with somekindof amplifier.

What do you think?

11

WTB/WTT / WTB-Ostrich 2.0

« on: November 03, 2012, 04:48:13 AM »

It's a plug-in emulator for the DME EPROM.  You can tun on the fly with it, switch tunes, etc.  Good cheap fun, check out Moates.net for info.

That's right, thanks! So, nobody has one for sale? :confused:

12

WTB/WTT / WTB-Ostrich 2.0

« on: November 01, 2012, 02:41:21 AM »

Hi,

I need an ostrich 2.0 . If you have one for sale please send me a PM.
Thanks!

13

Engine management / ostrich 2.0 with ITB's

« on: October 25, 2012, 12:29:09 PM »

The ECU most definitely does use the AFM at WOT. Believe me, I know from my experiences designing & tuning my MAF conversion! If you have the settings wrong and the ECU sees a bad air flow signal, you will run super rich or lean at WOT, which would not happen if it was ignoring that input. It uses both the AFM and IAT signals at WOT. If it was just using throttle position and RPM to look up fuel table bins, it would be more of an Alpha-N setup, which it is not.

You are correct that it ignores the NBO2 input, though. As far as I can tell, the ECU goes so far as to turn off the O2 Heater Relay when you are at WOT or over 4000RPM. This was the death of many WBO2 sensors (with my LC-1 setup) until I realized this and jumped the relay pins so that the O2 system always has power as long as the fuel pump is running.

Ohhhh that's more than an interesting information! I've never heard of that heater relay turning off.
Thank you very much, for this, I'll look after it!

14

Engine management / ostrich 2.0 with ITB's

« on: October 25, 2012, 01:06:12 AM »

Yes it does use the AFM air temp sensor at wide open for important fuel delivery correction. without the AFM you would be too lean on colder days and to rich on warmer days.

all the best

You are right about the temp sensor :cool:

15

Engine management / ostrich 2.0 with ITB's

« on: October 24, 2012, 01:02:57 PM »

I think that this might just be inherent to the Motronic M1.7. As far as I can tell, the ECU is a little "slow" in its response time since it was designed for a TB far from the valves, and the relatively slow-responding AFM. I remember driving a bone-stock 1995 M3 that a friend owned, no ITBs or anything, and the throttle response was waaaaaaay faster. The ECU was probably programmed to read the throttle and air flow inputs much more frequently, and it had a MAF which is a much faster sensor than the AFM. You might need to go stand-alone to really improve throttle response. A number of guys with MegaSquirt have reported an improvement there.

Yep, MS would be the perfect solution but it's a bit expensive for me.
Anyway, at WOT the ecu doesn't use the AFM/MAF or the NBO2.

M3 has a lighter flywheel it improves revving and better throtle response.