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Need diagnostic help !!!!!!

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Marceldsm

10+ Year Contributor
321
3
Jan 13, 2010
Montreal, QC, Canada
SO
im fixing my talon
at first i what getting only 1 code
12 air flow sensor

my 1g had a 2 g maf so i whas tinking the maf is damaged

i get a 1g used maf install it inside the car

NEW IM GETTING 3 CODES !!!!!!!!!!!

12: AIF FLOW SENSOR
14: THROTTLE POSITION SENSOR
25 BAROMETRIC PRESSURE SENSOR


I DID ALL THE TESTS ON THE WIRE CONNECTOR FOR THE 1G MAF ......EVERYTING IS OK I MEEN RESISTANCE AND POWER AND EVERYTING
ACCORDING TO HAYNES MANUAL
( SO IM TINKING I HAVE 2 DEFECTIVE SENSORS JUST MY LUCK)

AS FOR CODE 14 ( TROTTLE POSITION) THE OLD OWNER USED A PLASTIC TIE TO HOLD THE TERMINAL TO THE SENSOR

I USED A DATALOGGER AND SAFC ( ALL ON TPS %) TO SEE IF IT GIVES A SIGNAL

AT LAW TROTTLE IT JUST WHANTS TO DIE AND ITS CHOKING BOUTH THE DATALOGGER AND THE SAFC SAY 0% ONCE THE RPM`S PASS 3000 IT JUMPS TO 100% AND THE CAR JUST TAKES OFF LIKE A ROCKET LIKE IT WHANT TO KILL YOU OR SOMETING
ME AND MY FRIND WE AJUST THE TPS WE ACTUALY MADE IT SO WHEN YOU GIVE IT A LITTLE GAS IT GIVES A SIGNAL 10% 20% SO THAT WHAS OK.......BUT YOU GO AROUND THE BLOCK THE STUPID SENSOR MOVES OUT OF POSITION ( PLUG INCLUDET) AND THEN AGAIN SAME STORY ABOUVE
3000 PRM = 0% THROTTLE END AFTER THAT 100% THOTTLE

do i change tHE sensor and the connector oR what ??!!! is it a terminal problem or a connector
all the voltage and continuity test were inconclusive and i actualy got more mix then anyting

the ecm looks to be ok i did open it up and it look ok no leaks nothing


WHAT TO DOOO ????

I KNOW CODE 12 AND CODE 25 ARE THE SAME SENSOR Maf can it be someting else ?


code 14 do i give it a nother schoot on the wirering testing ? or i change the sensor ?

I REALY NEED HELP WHIT THESE ON TANKS IN ADVANCE

P.s

sorry for my bad english

Anybody ???!!!
 
Last edited:
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