dailing in fuel

Vehicle specific forum for tuning the Foxbody Chassis Mustangs utilizing decipha's GUFX Strategy

dailing in fuel

Unread postby Bonk1070 » Sat Feb 02, 2019 2:16 pm

trying to get my fuel dialed in my idle afr is 17.0 to 19.0 once on the throttle up to cruise it runs 14.0 to 15.2 once at cruse goes back lean not sure were to make changes also I see the o2 sensors don't move very much is this normal


log idle to cruise.xdl
You do not have the required permissions to view the files attached to this post.
Bonk1070
General Poster
 
Posts: 31
Joined: Mon Nov 26, 2018 1:40 pm
Vehicle Information: 1965 mustang 1989 5.0 eec-iv quarter horse tuner

Re: dailing in fuel

Unread postby decipha » Sun Feb 03, 2019 12:00 am

no it looks like your o2 sensors are shut off. There is an o2 sensor enable/disable switch from the ecu that is used as a ground reference. It should be near the back of the cylinder head its usually an o-ring and is the hego ground wire. Make sure that wire is hooked up to either the head or a good ground. If you can't find that wire then you will have to jump the ecu wire off at the ecu connector to enable the hegos.

its not wise to go WOT until you have your fuel dialed in
User avatar
decipha
Tooner
 
Posts: 16396
Joined: Mon Jul 15, 2013 5:29 pm
Location: New Orleans, LA
Name: Michael Ponthieux
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce
07 GMC 2500HD 6L - Veranafer

Re: dailing in fuel

Unread postby Bonk1070 » Wed Feb 06, 2019 9:49 pm

I checked my o2 plug wiring have switched 12v good ground and pins 29,43 ohm good to the ecm not sure why they are not turned on
You do not have the required permissions to view the files attached to this post.
Bonk1070
General Poster
 
Posts: 31
Joined: Mon Nov 26, 2018 1:40 pm
Vehicle Information: 1965 mustang 1989 5.0 eec-iv quarter horse tuner

Re: dailing in fuel

Unread postby NxCoupe » Wed Mar 27, 2019 10:12 am

Long tube headers?
NxCoupe
Power Poster
 
Posts: 103
Joined: Wed Jan 06, 2016 8:52 am
Location: Springboro, OH
Name: Michael
Vehicle Information: 2012 5.0 6 spd, on E85, offroad pipe, GT500 mufflers, just started tuning process, gained 40 rwhp over stock so far.
Black with black interior, base model, built shortblock.
SCT Xcal4, using Advantage to tune it.
Vehicle 2 Information: 1992 Mustang Coupe, coyote 5.0, turbo, 5 spd, race car build in progress. Used to run in NMRA Real Street, now building it for NMRA Coyote Modified
Vehicle 3 Information: 1993 Calypso Mustang Coupe, 5.0 no options, strip down coupe. Only has auto and cruise, didn't even come with a radio, lol. Future plans are to put a Windsor with an On3 turbo kit and an AOD with a brake.
Additional Vehicles: 1993 2.3L 5 spd Mustang coupe, future turbo 2.5 build.
Moates chip, BE tuned
GSS340 pump
Spec Stg 3 clutch
V8 T5 with custom input shaft, billet shifter
8.8 rear end with 3.55 gear, 4 wheel disk
V8 front spindles and brakes,
V8 sway bars front and rear
CC plates
FRPP cockpit adjustable shocks and struts. Soft to race with the flip of a switch!
Have 57mm turbo, Stinger header, ebay blow off and waste gate purchased so far.


Return to Foxbody Tuning (GUFX)

Who is online

Users browsing this forum: No registered users and 1 guest