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Old June 26th, 2014, 04:04 PM
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rpez4u rpez4u is offline

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Question help trouble code 171 & 172

Hi! I'm a new member, my 1994 f250 almost stalls and wont accelerate. I am getting trouble codes 171 & 172. I have looked suggestions for these codes and found out that the Mass Airflow sensor my need to be cleaned? First; I cannot find the MAS on my truck. second any help Please.

PS I did change the O2 Sensor this week nothing changed