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 »

Unplugged the #1 inj for fun, results:
Capture.JPG
dleach1407
Posts: 468
Joined: 2021 Mar 21, 15:17
Location: Colorado Springs, CO
Vehicle Information: 95 Mustang GT, CBAZA Quarterhorse
331, 190 11R heads, Edelbrock Victor 50 manifold, F303, T5, 76mm Turbo, 91 octane, Returnless dual pump 03 cobra tank, Behind bars rails, 80# siemens injectors
wbo2_030MtxL

57 F100, RZASA, 04 Crown Vic ecu and harness, 302, GT40 heads, 4r70w, 80# deka5 shorties, Holley carb style throttle body, Speedmaster high rise intake manifold

Re: Not enough MAF Points?

Unread post by dleach1407 »

Do you have any exhaust leaks? Fresh air getting into the exhaust could cause it... You can swap the oxygen sensors from side to side to see if the problem follows. You could have a lazy o2.
dleach1407
Posts: 468
Joined: 2021 Mar 21, 15:17
Location: Colorado Springs, CO
Vehicle Information: 95 Mustang GT, CBAZA Quarterhorse
331, 190 11R heads, Edelbrock Victor 50 manifold, F303, T5, 76mm Turbo, 91 octane, Returnless dual pump 03 cobra tank, Behind bars rails, 80# siemens injectors
wbo2_030MtxL

57 F100, RZASA, 04 Crown Vic ecu and harness, 302, GT40 heads, 4r70w, 80# deka5 shorties, Holley carb style throttle body, Speedmaster high rise intake manifold

Re: Not enough MAF Points?

Unread post by dleach1407 »

just noticed the graph in the first pic says the car has only been running for 11 second. Wait until it's warm. Oxygen sensors aren't accurate until they get warm, 11 second isn't enough yet. How do they react at operating temp?
Post Reply