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07-12-2016
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#1 |
 Join Date: Jun 2015
Location: Texas
Posts: 530
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Code 23 MAT Low
I have ECM Code 23 Manifold air temperature sensor low. the Wiring looks OK so its probably the sensor. Odd thing is that the SES light only comes on when I am idling. As soon as I get moving for a minute or two the SES light goes out. Its been very hot here in Houston so I am wondering if the sensor is just overheating? Oil and water temps are hot when stuck in traffic but no more than 3/4 of the gauge for water. middle for oil.
So my question is this seems like a good time to do the MAT relocation mod to the airbox or further out in the breeze. When you do that I assume you leave the old sensor in place and just buy a new one and an extension pig tail to wire it? or do you put a plug in place of the old sensor? Also is failure of this sensor a common event? Thanks |
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07-12-2016
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#2 | |
   
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
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Re: Code 23 MAT Low
Quote:
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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07-16-2021
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#3 |
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Join Date: Aug 2014
Location: Trois-Rivieres (QC)
Posts: 473
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Re: Code 23 MAT Low
I've got the same exact problem. I searched, without success. How do you fix Code 23, lighting on only when idling, coming out of a highway for example?
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Mazda RX-7 1992 Chevrolet Corvette ZR-1 1991 Dodge Viper RT/10 1994 Mercedes-Benz C63 AMG 2009 |
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07-16-2021
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#4 |
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Join Date: Jun 2015
Location: Texas
Posts: 530
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Re: Code 23 MAT Low
I replaced the sensor in the stock location, never had an issue after that.
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