HELP!!! Wideband won't Read!!

Tuning concepts, methods, tips etc.

Moderators: jsmcortina, muythaibxr

HELP!!! Wideband won't Read!!

Postby Slowr427 » Sun Jun 18, 2017 10:38 am

I just installed my pnp2 for my 92 mustang. It starts up and idles fine. The problem i'm having is that the gauge is reading the correct air fuel ratio but I can't get the megasquirt see the afr input.

I connected the yellow wire from Innovate LC-2 to pin 21.
I adjusted the WB and calibrated the megasquirt to the given AFR values of:
0v=7.35
5v=22.39

I know I sound stupid. But I'm lost! Also

Thank You
2017-06-18_10.36.19.msq
6-18-17
(116.99 KiB) Downloaded 10 times
Slowr427
MS/Extra Newbie
 
Posts: 2
Joined: Tue Jun 13, 2017 7:11 pm

Re: HELP!!! Wideband won't Read!!

Postby Blown88GT » Mon Jun 19, 2017 3:33 pm

http://www.megasquirtpnp.com/docs/mspnp ... ?isModel=1
Optional Configurations
Several jumpers are located on the lower, black circuit board inside the MSPNP. These are accessible by removing the top cover and are indicated as depicted below. However, these dictate the platform with which the MSPNP is design for. The only jumper that should be changed, if desired, is J6.
Image
Place a jumper between "O2 Sensor" and "J8-29" to connect the right bank OE O2 sensor the MSPNP. Likewise, connect the jumper between "O2 Sensor" and "J8-43" to connect the left bank OE O2 sensor.

My guess is you remove J6 jumper to enable pin-21 on the Options Port.
You can verify this by testing continuity from pin-21 to the center pin of J6.

Image
1988 Mustang GT, 57k miles, Orig. Owner
ProCharger 600B I/C, 12psi, FRPP Hdrs, Flwmstr F2, 3G Alt, Mk8 Fan & DCC, 3.55's, Prog Sprng, Subfrms, UCA, LCA, FCA, Tokico 5-way, CSA 16x8, Bridgestone RE760 225/50R16, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, LC2, C&L76mm blo-thru MAF, 30lb FRPP
User avatar
Blown88GT
Master MS/Extra'er
 
Posts: 618
Joined: Sun Dec 15, 2013 7:53 pm
Location: South Florida

Re: HELP!!! Wideband won't Read!!

Postby ironwill11 » Sat Jun 24, 2017 7:18 pm

Slowr427 wrote:I just installed my pnp2 for my 92 mustang. It starts up and idles fine. The problem i'm having is that the gauge is reading the correct air fuel ratio but I can't get the megasquirt see the afr input.

I connected the yellow wire from Innovate LC-2 to pin 21.
I adjusted the WB and calibrated the megasquirt to the given AFR values of:
0v=7.35
5v=22.39

I know I sound stupid. But I'm lost! Also

Thank You
2017-06-18_10.36.19.msq


Did you get this sorted out? Have you verified that you are getting voltage output from the wideband and going into MS?

Will
ironwill11
Experienced MS/Extra'er
 
Posts: 165
Joined: Sat Sep 17, 2016 9:22 am

Re: HELP!!! Wideband won't Read!!

Postby Slowr427 » Mon Jun 26, 2017 6:07 pm

That did the trick! It works! Thank you for your help! Now I can start tuning.
Slowr427
MS/Extra Newbie
 
Posts: 2
Joined: Tue Jun 13, 2017 7:11 pm

Re: HELP!!! Wideband won't Read!!

Postby ironwill11 » Tue Jun 27, 2017 9:00 am

Can I ask what you fixed?

Also what is the head phone jack for? I don't have the PNP version and don't have a headphone jack. What does one do with it?

Will
ironwill11
Experienced MS/Extra'er
 
Posts: 165
Joined: Sat Sep 17, 2016 9:22 am

Re: HELP!!! Wideband won't Read!!

Postby Blown88GT » Tue Jun 27, 2017 5:01 pm

The Mustang specific MSPNPG2 looks like this.
Couldn't use the standard serial port because of interference with the factory bracket/location. The factory ECU barely fits.
Image
http://www.megasquirtpnp.com/mspnp2_features.php
Headphone output for knock sensor - listen for knock while you tune!
The small connector that looks like it could be for a set of headphones - well, it is. On engines equipped with a knock sensor, this allows you to listen to the knock sensor. In most cases if your vehicle had a factory knock sensor, we've already tied it in through the factory wiring harness. If your vehicle did NOT have a factory knock sensor, you can add one, if you like, using the option connector outlined above.
1988 Mustang GT, 57k miles, Orig. Owner
ProCharger 600B I/C, 12psi, FRPP Hdrs, Flwmstr F2, 3G Alt, Mk8 Fan & DCC, 3.55's, Prog Sprng, Subfrms, UCA, LCA, FCA, Tokico 5-way, CSA 16x8, Bridgestone RE760 225/50R16, Crane HI-6, Kirban FPR, MS2, DIYPNPF60, LC2, C&L76mm blo-thru MAF, 30lb FRPP
User avatar
Blown88GT
Master MS/Extra'er
 
Posts: 618
Joined: Sun Dec 15, 2013 7:53 pm
Location: South Florida


Return to Tuning

Who is online

Users browsing this forum: No registered users and 2 guests