Microtech Tuning matrix mode
12-20-15, 05:20 AM
#29
Tuning matrix mode
Either the fpr is culprit or the fuel pump (or both) Base pressure is 40 psi, I wouldn't think that's too low for good fuel volume with 1000cc injectors on a walbro 255 hooked up with 10g wire.
Last edited by wthdidusay82; 12-20-15 at 05:26 AM.
12-20-15, 03:05 PM
#33
-5" of vacuum is how the micro is set up as one of its 2 parameters for staging. lower it a bit and see if it shifts where it leans out. what inj you running? 50% indicates you have 4 of the same size
12-20-15, 03:14 PM
#34
1000cc x4, I have staging at -5 hg but I have map setup for it.
I did the the static pressure test and fuel pressure is absolutely solid.
I went ahead and tested in gear on my Jackstands up to 55mph in 3rd gear and it runs good, really rich though.
I think my next step will be road tuning after I get all the little things fixed and have it safe for a ride on the road.
I did the the static pressure test and fuel pressure is absolutely solid.
I went ahead and tested in gear on my Jackstands up to 55mph in 3rd gear and it runs good, really rich though.
I think my next step will be road tuning after I get all the little things fixed and have it safe for a ride on the road.
12-21-15, 08:48 PM
#37
no matter how I adjust my settings I'm having the huge lean spike on big throttle changes when i hit the throttle fast, im wondering if something is up with my timing or what the deal is, ive checked everything over, im lost as to why it would just spike lean no matter how much fuel i throw at it.
I'll make sure my spark plug wires are all on correctly, it's just not adding up, theres no reason for it to go lean like that.
I'll make sure my spark plug wires are all on correctly, it's just not adding up, theres no reason for it to go lean like that.
12-22-15, 03:05 PM
#41
well what would cause my issue ? I am using an FD UIM and throttle body, with the secondary butterflies removed.
It seems like there is just wayyy to much air coming in, or something isnt right. I've tried adding fuel all over the place and nothing seems to change, really starting to get annoyed at this point, don't know what to do.
The car afr will go very lean with small throttle changes at low rpm ive seen it goto around 17+ at 1000-2000 rpm, I've added tons of fuel to pump settings, changed the fuel curve and nothing.
Something isn't right and I'm pretty much lost at this point, soon as I can log things better I hope to further address the problem. I may start doing diagnostics/troubleshooting to make sure everything is as it should be, because nothing makes any sense.
Why wouldn't a huge surge in vacuum cause an issue even though its not an afm system ? It seems like something is just overloaded, or not set correctly or running right.
17.0 afr from a small throttle step shouldn't be happening at low rpm, the problem seems to go away as rpms go up and is most prevalent from the transition of low rpm to mid.
Im wondering if my injectors are maybe not flowing properly also, they are brand new injector dynamics, but i just dont get why i need so much fuel at low end.
My idle values are around 1.5 - 1.7 when in vacuum at idle around 1000 rpm, doesnt that seem high for id1000s on a stock port with 50% injector staging ? or is it just me
It seems like there is just wayyy to much air coming in, or something isnt right. I've tried adding fuel all over the place and nothing seems to change, really starting to get annoyed at this point, don't know what to do.
The car afr will go very lean with small throttle changes at low rpm ive seen it goto around 17+ at 1000-2000 rpm, I've added tons of fuel to pump settings, changed the fuel curve and nothing.
Something isn't right and I'm pretty much lost at this point, soon as I can log things better I hope to further address the problem. I may start doing diagnostics/troubleshooting to make sure everything is as it should be, because nothing makes any sense.
Why wouldn't a huge surge in vacuum cause an issue even though its not an afm system ? It seems like something is just overloaded, or not set correctly or running right.
17.0 afr from a small throttle step shouldn't be happening at low rpm, the problem seems to go away as rpms go up and is most prevalent from the transition of low rpm to mid.
Im wondering if my injectors are maybe not flowing properly also, they are brand new injector dynamics, but i just dont get why i need so much fuel at low end.
My idle values are around 1.5 - 1.7 when in vacuum at idle around 1000 rpm, doesnt that seem high for id1000s on a stock port with 50% injector staging ? or is it just me
Last edited by wthdidusay82; 12-22-15 at 03:08 PM.
12-22-15, 05:19 PM
#42
it's idling at 900, so there isn't too much air coming in. there is a huge surge of vacuum, when you apply the throttle. a large leak would show up as very low or no vacuum.
your issue could be low voltage to the injectors, air pressurizing the fuel system instead of fuel, bad grounding or something else.
funny, we just went through a similar situation like this with djsl on the 2nd gen forum section and it wound up being a faulty fuse and injector clip.
your issue could be low voltage to the injectors, air pressurizing the fuel system instead of fuel, bad grounding or something else.
funny, we just went through a similar situation like this with djsl on the 2nd gen forum section and it wound up being a faulty fuse and injector clip.
12-22-15, 05:27 PM
#43
Tuning matrix mode
When I hit the throttle hard it can go up to 0hg in a split second, is that normal ?
My friend is working on helping me get some logging done.
I've checked the injectors before in test mode and they all pulse. I've even checked voltage on them and they measure battery voltage with key on.
My friend is working on helping me get some logging done.
I've checked the injectors before in test mode and they all pulse. I've even checked voltage on them and they measure battery voltage with key on.
12-22-15, 07:03 PM
#45
Tuning matrix mode
I hooked up the fpr just like they say to hook up in the instructions.
2 lines on the sides are coming off the return from the rails going to it and the bottom one goes to the return to the tank.
Was thinking of raising base fuel pressure to see if that does anything, from 40 to maybe 45 psi or more
2 lines on the sides are coming off the return from the rails going to it and the bottom one goes to the return to the tank.
Was thinking of raising base fuel pressure to see if that does anything, from 40 to maybe 45 psi or more
Last edited by wthdidusay82; 12-22-15 at 07:10 PM.
12-22-15, 08:06 PM
#47
Tuning matrix mode
if you steadily feed the throttle in does it fatten up with increased ms values? apart from the throttle blips is afr respond to fuel changes. eg at 2000 rpm does incresing ms show up on afr gauge. Sorry I havnt been following fully so may have missed if you have stated this or not