AE86 with 20V blacktop

[sly]

"Why don't you want to install a proper crank trigger wheel, like 12-1 with 1GT101 sensor?"
I would love too. but we need it to look stock so the smog guys don,t notice
or if a cop pops the hood and sees anything like that you get busted.
it is getting more an more common that the cops pop hoods looking for modified motors.

but the good news is we got the stock trigger to work.
I would have noticed right away if I used a analogue scope but I was using a digital that never showed that I was getting 2 triggers on the home.
On the wheel where the two ramps come together it makes a tiny voltage. and that was all it took to trigger the VR chip.
And mt box had the wrong cap for the gain.  it had a .1uF I put in a 1uF and now it works great. I then found out it should have a 2uF.The motor started fist try.
but the idle was bad and the IAC control is not working right. and we seem to have blew up the O2 sender..
tonight we will try again. going to plug in a standalone WBO and if it also does not work change out the O2.

[sly]

we moved from 1.1.18 to VemsMT1.1.44alpha2
and used the bigger table. and it ran much much better. we had to change the req'd fuel from 9 to 4, And the map is looking like a TPS map. the 1.1.18 had to have very large numbers down low. So the map looked backwards. We would have used 1.1.60 but I did not have MT working with that and we could not get the config to work in Vemstune. I am just not not as familiar with it as I am with MT.
and time is short.

[Grant]

Thanks for the help so far guys.  I drove the car 180 miles down to school the day after loading 1.44alpha.  Even with cruise AFR of 1.02 lambda and 30.5 degrees ignition timing at 3600 rpm, I got pretty bad mileage.  Something like 23.5 US MPG.  The engine SHOULD get around 30mpg at cruise speed, but I was getting poor results with OEM ecu too.  Maybe something else is up.

[Grant]

Bench testing with a Camry dizzy since my engine was already installed (was using OEM ecu w/o good results) and dizzy faces firewall!


Engine harness took an unbelievable amount of time!  Makes the pre-made VEMS harness seem like worth the money..even in USD haha.

[Grant]

As mentioned in other threads, I'm having poor around-town drive ability and very poor fuel economy.  After looking at the logs, it seems like my accel enrichment is working full time, regardless of how slowly I tip in.  At cruise and around town, I have target lambda as high as 1.07, but usually 1.04. 

I dunno about these injector opening times, I was given them from another config. 

[z0tya]

Do you use high or low z injectors? put 25.5 ms instead of 1.5 if using high z.
And put screenshot about your acc. enrichment settings.

[Grant]

I have high Z injectors (the newer kind right?  Denso connectors, higher ohm). 

what will that do to my fuel maps if I change the injector open time?

I'll post up a screen shot later.  I used the default of dv/dt 5, 10, 20, 40.  and .2, 1, 3.5, 5 ms respectively.  Do I need to change those values if using AlphaN? 

[Grant]

I mean do I need to change the change the voltage change/time values if using alpha N?

(as apposed to the ms values)

[z0tya]

I think no need. Can you show log file, where the acc.enrich working all time?

[Grant]

To I just put the log file up as an attachment?