Air flow sensor problems
Air flow sensor: Air flow sensor. It detects how much air is flowing into the engine.
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Fuse 47 always blows
Ford Mustang 2007 Base, 4.0l v6 118000 miles
Fuse leads to maf, evap, and 4 O2 sensors, sensors are good, wires are good, on initial key turn fuse 47 immediately blows, supposed to be a 15amp but blew a 30, stuck in limp mode because of it, traced problem to the fuse box itself, replaced it and fuse still imploded
4 reports
2
4.
I had this issue, Found out it was the fuse so i replaced it except mine worked for awhile it popped so i just bought alot of them cause i was too busy to deal with it and just kept replacing the fuses some would last longer then others sometimes even 3 to 4weeks, Eventually the problem went away, Still don't know what it was to this day. Car seemed to have fixed itself.
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HO
It's a short. Mine did the same thing periodically. One of the 02 upstream wires where barley touching the frame through a very small cut in the wire. When you throddle hard (various driving conditions) it would make a solid connection and blow the fuze shorting the 02 and maf connection putting the car in limp mode. Yours should be the same however the short could be in a different location. The only way to find the short is while it is in fact shorted. Aka one side will be negative the other side of the fuze positive. Following the wire under this condition you can cut it and check both ends Following the ground (that's not supposed to be ground) until you identify it's location. Likely start at the 02 sensor as that's where mine was.
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HA
@HoneybadgerHi I'm having a problem with a short disconnect the negative. Put a test light on the post to the cable it lights up not real bright and it keeps given a code bank 2 sensor 2 I have replaced the EGR it showed a code so now the map sensor is showing a code I'm trying to track it down with a wire tracker but not having any luck not to sure about the unit on the use of it any ideas would very much be appreciated thank you my name is Harvey jones
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CommentNo aumenta la velocidad a más de 70 km/h
Ford Mustang 1994 Mi carro se le cambió motor, trasmisión pero no corre a más de 70 u 80 no entiendo que le pasa 1000000 miles
Se le cambió la trasmisión, el motor, sensor maf y no me quita la falla de no correr más de 70 km/h a esa velocidad solo se desconecta el acelerador y baja de velocidad para volver a acelerar y subir solo a lo mismo
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