starts and dies

streetknight · Post by **streetknight** » Tue Mar 14, 2006 5:36 pm

ok i know there are like 20million of these threads, but heres a shot in the dark.
ok i installed msv2.2 on my e30 bmw. with a m20b27 engine to control fuel. i wired up the fuel inj. by them selfs took them out of the loop from the bmw harness. have air temp coolant temp. but my tps only works when it fels like it some times it shows up very accurate and some times its a will show ether 0 or 100. and pulse width and tach signal do not show up. it starts makes it sound like it wants to go but it wont idle nor will it run if i give it wot. thanks in advance

Bernard Fife · Post by **Bernard Fife** » Tue Mar 14, 2006 6:02 pm

streetknight,

Make a datalog of a starting attempt (Alt+L, <enter> in MegaTune) and post it here as an attachment for us to have a look at.

Also let us know what code you have, and post an MSQ settings file as well.

Lance.

streetknight · Post by **streetknight** » Wed Mar 15, 2006 10:31 am

ok heres the datalog file i have. now my tps is not working

Bernard Fife · Post by **Bernard Fife** » Wed Mar 15, 2006 10:52 am

streetknight,

You are in flood clear mode. This is because MegaSquirt thinks the TPS is at 100%. So you need to either fix the TPS <http://www.megasquirt.info/v22manual/mwire.htm#tps>, or ground the sensor lead (not the 5Vref) through a 1K Ohm resistor.

The once you do get started, it looks like your PWs are too high, flooding the engine. It appears this is due to accel enrichment (you get a code 17 = 1 + 16 = "running" + "accel enrich"), so you need to reduce these (whether they are TPSdot or MAPdot based). Try cutting all the millisecond values in half, and doubling the TPSdot and/or MAPdot thresholds.

Let us know if that helps.

Lance.

streetknight · Post by **streetknight** » Wed Mar 15, 2006 1:27 pm

ok got time to bring it in heres with the tps working and calibrated right.