Not enough MAF Points?

Decipha's custom GUFX strategy covers all 89-93 foxbody ecu's including the 88 mass-air california ecus.
Nanserbe
Posts: 11
Joined: 2022 May 17, 13:59
Location: Silverdale, WA
Vehicle Information: 1989 Mustang 302, GUFB, Trick Flow Twisted Wedge heads & stage 2 cam, Siemens 60lb EV1 injectors, 3" PMAS 24lb MAF, Innovate LC-1

Re: Not enough MAF Points?

Unread post by Nanserbe »

decipha wrote: 2022 May 17, 20:57 no, the maf has nothing to do with the injectors.

You simply copy and paste the actual maf curve in your tune from the homepage

fox 24lb curve since ita cald for 24s
And then the 60lbs siemens patch since I'm running the black Siemens 60's?

I recall (a LONG time ago) you said that you use high/low to get close, and then the MAF to fine tune the rest?
ironmanisanemic
Posts: 11
Joined: 2021 Mar 14, 21:45
Location: Toutle, WA
Vehicle Information: 1989 Ford Bronco
U4P0 Processor
393w Stroker, 4R70W

Re: Not enough MAF Points?

Unread post by ironmanisanemic »

Give this a shot

Code: Select all

4.950000197	1146.135274
4.800000191	1069.578063
4.650000185	992.9662965
4.500000179	917.2188745
4.350000173	843.1169724
4.200000167	771.3123465
4.050000161	702.3378612
3.900000155	636.6155165
3.750000149	574.4656289
3.600000143	516.1151564
3.450000137	461.7068738
3.300000131	411.3074984
3.150000125	364.9157961
3.000000119	322.4713125
2.850000113	283.8618365
2.700000107	248.9318103
2.550000101	217.4898909
2.400000095	189.3164845
2.250000089	164.1715715
2.100000083	141.8019293
1.950000077	121.948309
1.800000072	104.3527913
1.650000066	88.76559583
1.50000006	74.95202017
1.350000054	62.69919973
1.200000048	51.82264377
1.050000042	42.17275037
0.900000036	33.64112931
0.75000003	26.16681821
0.600000024	19.7423474
Nanserbe
Posts: 11
Joined: 2022 May 17, 13:59
Location: Silverdale, WA
Vehicle Information: 1989 Mustang 302, GUFB, Trick Flow Twisted Wedge heads & stage 2 cam, Siemens 60lb EV1 injectors, 3" PMAS 24lb MAF, Innovate LC-1

Re: Not enough MAF Points?

Unread post by Nanserbe »

ironmanisanemic wrote: 2022 May 17, 23:56 Give this a shot

I will thanks!

I see that some MAF curves have kg/min, lb/min, etc. Does it matter what one I put it into, as long as the unit matches? How does tunerpro know what one to use?
decipha
Posts: 5031
Joined: 2021 Feb 15, 12:23
Location: Metairie, LA
Vehicle Information: Work Truck
'19 F-150 3.3L

Re: Not enough MAF Points?

Unread post by decipha »

No, u have to put the injector data in first then the maf

read the comments on the injector high slope

they are all the same just displayed to you differently

i wouldnt recommend using the maf he poated as it doesnt go to max and min volts and the points are outside of the histogram so youd have to manually dial it in
Nanserbe
Posts: 11
Joined: 2022 May 17, 13:59
Location: Silverdale, WA
Vehicle Information: 1989 Mustang 302, GUFB, Trick Flow Twisted Wedge heads & stage 2 cam, Siemens 60lb EV1 injectors, 3" PMAS 24lb MAF, Innovate LC-1

Re: Not enough MAF Points?

Unread post by Nanserbe »

decipha wrote: 2022 May 18, 06:57 No, u havw to put the injector data in first then the maf

read the comments on the injector high slope

they are all the same just displayed to you differently

i wouldnt recommend using the maf he poated as it doesnt go to max and min volts and the points are outside of the histogram so youd have to manually dial it in
I put the injector data in (using your Siemens 60 patch), then the 24lb calibrated MAF, SARCHG,

It wont run though, at least not well. There's raw fuel coming out of the exhaust and it ended up filling up the #1 cylinder with fuel to where I had to take the spark plug out and turn it over.
decipha
Posts: 5031
Joined: 2021 Feb 15, 12:23
Location: Metairie, LA
Vehicle Information: Work Truck
'19 F-150 3.3L

Re: Not enough MAF Points?

Unread post by decipha »

did you adjust the cranking pw?
Nanserbe
Posts: 11
Joined: 2022 May 17, 13:59
Location: Silverdale, WA
Vehicle Information: 1989 Mustang 302, GUFB, Trick Flow Twisted Wedge heads & stage 2 cam, Siemens 60lb EV1 injectors, 3" PMAS 24lb MAF, Innovate LC-1

Re: Not enough MAF Points?

Unread post by Nanserbe »

decipha wrote: 2022 May 18, 11:23 did you adjust the cranking pw?
Yes. I might redownload the A9L2 and start back over to make sure.

Code: Select all

05/16/2022 16:12:19  Scalar:    SP** (WARNING) AHISL -  Injector High Slope **SEE COMMENTS** changed from 19.641 lbs/hr (0x13A4) to 60.270 lbs/hr (0x3C45).
05/16/2022 16:13:35  Scalar:    SP** ALOSL - Injector Low Slope [lbs/hr] changed from 80.087 lb/hr (0x5AB6) to 63.191 lb/hr (0x4793).
05/17/2022 08:28:01  Patch:     INJECTORS - 60LB @ 40PSI - LU60 Siemens Deka 60s changed.
05/17/2022 08:35:57  Function:  Crank PW ECT Modifier - FN348 changed.
05/17/2022 08:43:38  Scalar:    SP**_SARCHG - Engine Size Displacement changed from 926.66 Cubic In. (0x29CF) to 301.99 Cubic In. (0x0DA0).
05/17/2022 16:36:36  Function:  SP** MAF Transfer - AM - FN036 (approximate) changed.
05/17/2022 22:28:59  Function:  SP** MAF Transfer (volts) - kg/hr - FN036 changed.
05/17/2022 22:42:14  Patch:     KAM Clear At Key On - Z_KAMCLR (Adapt Disable / FADPT_SW) (Disables Idle Spark Corr ?) changed.
05/17/2022 22:59:45  Function:  Injector Offset Lag Time - FN367 (Crank PW Modifier) changed.
05/18/2022 07:32:32  Function:  SP** MAF Transfer - AM - FN036 (approximate) changed.
Nanserbe
Posts: 11
Joined: 2022 May 17, 13:59
Location: Silverdale, WA
Vehicle Information: 1989 Mustang 302, GUFB, Trick Flow Twisted Wedge heads & stage 2 cam, Siemens 60lb EV1 injectors, 3" PMAS 24lb MAF, Innovate LC-1

Re: Not enough MAF Points?

Unread post by Nanserbe »

decipha wrote: 2022 May 18, 11:23 did you adjust the cranking pw?
I have 60's so I multiplied the right column by 0.31666666666666666666666666666667 (19 / 60)

I'm going to try the redone tune and see what happens.
decipha
Posts: 5031
Joined: 2021 Feb 15, 12:23
Location: Metairie, LA
Vehicle Information: Work Truck
'19 F-150 3.3L

Re: Not enough MAF Points?

Unread post by decipha »

u did verify its communicating and the fuel pump primed and shut off

sounds like u didnt clean the j3 port
Nanserbe
Posts: 11
Joined: 2022 May 17, 13:59
Location: Silverdale, WA
Vehicle Information: 1989 Mustang 302, GUFB, Trick Flow Twisted Wedge heads & stage 2 cam, Siemens 60lb EV1 injectors, 3" PMAS 24lb MAF, Innovate LC-1

Re: Not enough MAF Points?

Unread post by Nanserbe »

decipha wrote: 2022 May 18, 12:48 u did verify its communicating and the fuel pump primed and shut off

sounds like u didnt clean the j3 port
Yeah pump shuts off after 3s of priming, how do I verify it's communicating well with the ECU?

I'm kind of wondering if I have a bad HEGO, or stuck injector or something on Bank 1, as that was where the #1 cylinder filled up with fuel.

Bank 1's HEGO volts are a LOT lower than bank 2.
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