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September 21st, 2001, 11:08 PM
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maf counts
hooked up a snapon scan tool to my 84 to see if i could find out why its running rich, and the only thing that i can find wrong is the MAF counts read 240 with engine off and key on. could this be why its running rich? idling it reads 8-9, thanks, mike
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mike Baldwin 65 GS 69 GS 84 T-Type digital dash, t-tops, full power--added : home made hot wire kit, hooker exhaust system-no cat, adjustable FPR, adjustable wastegate, digital boost gauge, ext. fuel pressure gauge, 160 thermostat, blocked T/B coolant lines 86 T-Type-frankenstein 2005 dodge ram 2500 4x4 w/19.5 rims Southaven Ms.     
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September 22nd, 2001, 10:16 AM
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Re: maf counts
Quote:
 Key On Engine Off (KOEO) on an 86/87 car should read the MAF table's lowest value, depending on the chip in use this could be 3 to 5.
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TurboDave EWCS(SW) USN (Ret.) My Photo Gallery Email Us Sevierville, TN TranslatorPro MAFless fuel, spark and boost management 86 GN(TranslatorPro/ExtenderPro on speed density w/boost & fuel pump control,PLX-WB) (original owner) 87 GN (second owner) 84 L69 Z28 (original owner) 01 Excursion LTD 7.3L PSD(Power Stroke Diesel), Turbo, 4X2 08 Honda Accord EX-L, 270HP 3.5V6, AT
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September 22nd, 2001, 08:08 PM
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so is my maf bad?
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mike Baldwin 65 GS 69 GS 84 T-Type digital dash, t-tops, full power--added : home made hot wire kit, hooker exhaust system-no cat, adjustable FPR, adjustable wastegate, digital boost gauge, ext. fuel pressure gauge, 160 thermostat, blocked T/B coolant lines 86 T-Type-frankenstein 2005 dodge ram 2500 4x4 w/19.5 rims Southaven Ms.
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September 27th, 2001, 06:50 PM
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Your MAF may not be bad. I hooked up the Snap-On scanner to my '84 and MAF counts were all over the place while running. I changed out the PROM chip to a Posten 93 chip and suddenly the counts were accurate. I don't know if something was incompatibale with the scanner, but my car definetly ran better and the scanner was perfect. Just a thought. How are your readings when the car is running at idle and WOT?
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September 27th, 2001, 07:11 PM
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How are your readings when the car is running at idle and WOT?
idle is 8-9, wot goes up but not sure to what
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mike Baldwin 65 GS 69 GS 84 T-Type digital dash, t-tops, full power--added : home made hot wire kit, hooker exhaust system-no cat, adjustable FPR, adjustable wastegate, digital boost gauge, ext. fuel pressure gauge, 160 thermostat, blocked T/B coolant lines 86 T-Type-frankenstein 2005 dodge ram 2500 4x4 w/19.5 rims Southaven Ms.
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September 27th, 2001, 10:29 PM
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Mike,
With the scanner in the "safe to drive" mode go drive the car and look at the MAF counts. At WOT the readings should be somewhere over 200. Also you can try the tap test. With the car idling tap the MAF sensor and see if the idle changes. If it changes when the sensor is hit, it is bad.
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