New serial protocol / MS3 pre1.1 alpha codes 12+

[prof315]

I seem to be having some troubles with test mode in Alpha 14. I'm playing with some Nippondenso pencil coils from a 2.4L Honda Accord (3 wire smart coils) and so far I can't get them to fire. It may be that they need the external transistor mod like VAG coils but I can't even get test mode to fire my LS coils. Maybe I'm doing things wrong so here is how I have been using test mode.

Open the test mode dialog box
enter 12345 in the top box, hit TAB key

fuel pump off
test mode coils
coils on
single coil
coil H (the denso coil I am trying)
3ms dwell
Burn

As I say, even if I switch to coil A which is one of the LS coils that runs my engine I get nothing. And yes I cycle the key before trying coil A

Thanks,
Jeff

[jsmcortina]

Wrong sequence. Follow the video !

James

[prof315]

Ah, got it! I'll try again tonight.

Thanks James!

Jeff

[NArcher]

Will there be any support for Mazda 3/6 2.3L with 6 tooth cam wheels (Maybe 4+2 cam setting)?

[NArcher]

Sorry, I just found out that the 04-05 Mazda3/6 cam profiles are the same as the Zetec (36-1 Crank, 4+1 Cam). Thanks for all your hard work James. Being a junior programmer, I know how frustrating writing code can be!

[jsmcortina]

I know you said you need to test all combinations for fuel consumption but if you want to see one that doesn't work, I've attached my MSQ for you to try. Gauge either stay at 0 or at a crazy high number.

You haven't set your injector size.

James

[jsmcortina]

Than as I understand the Single letter command A is not supported. Do you have any plan that it will work in the future?

I've added 'A' for backwards compatability for the next alpha. It is advised that newserial be supported by devices if possible as all transactions are error checked, the old serial method had numerous weaknesses.
The protocol document is at: http://www.msextra.com/doc/ms3/files

James

[93white3400z]

I know you said you need to test all combinations for fuel consumption but if you want to see one that doesn't work, I've attached my MSQ for you to try. Gauge either stay at 0 or at a crazy high number.

You haven't set your injector size.

James

That could be a problem indeed. Didn't know the existance of those settings.

Thank you!

[jsmcortina]

You haven't set your injector size.

That could be a problem indeed. Didn't know the existance of those settings.
Thank you!

It was recently added to the "Engine and Sequential settings" page

James

[NArcher]

Can you add support to invert the tps signal? My car has drive by wire and the signal is 5v closed and 0v WOT.

[jsmcortina]

Can you add support to invert the tps signal? My car has drive by wire and the signal is 5v closed and 0v WOT.

Are you sure there aren't two? From what I've read it is typical to have one forwards (0-5V) and one backwards (5-0V)

James

[NArcher]

I tested all three wires. There is one wire (+5v), (GND), and (5-0V). I tried testing in multiple combinations, but I could not get 0-5V. Is there a way to modify the code for this? I will test again tomorrow to see if I can get the correct signal. Thanks

[jsmcortina]

Swap the 5V and GND wires.

James

[hassmaschine]

Swap the 5V and GND wires.

James

this *may* not work. depending on the design of the TPS itself - on BMWs, if you wire it backwards the sensor will not give a stable reading. Perhaps because of an internal diode or something else..

[NArcher]

I would swap the leads but I'm running
A parallel setup

[NArcher]

I guess I would have to make an inverter circuit.

[jsmcortina]

See how it goes with alpha15.

James

[NArcher]

Thanks James, I'll wait for Alpha 15 and check it again.