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Discussion Starter #1
I’m new here.
I have a problem with my Ford van, I got the code P0102 and the van hesitates, the escape smoke smell very bad.

I have been doing a little research and check the wiring voltage. I have another van 2004 E350 with the same engine, same MAF sensor, but with different voltage reading. I switched the MAF sensor of both vans and same problem. The sensor isn’t the problem.

I have checked and the ground for the MAF sensor is the ground G104, I don’t know where this ground is, some of you know where is?

In conclusion, the MAF sensor isn’t getting the correct voltage. The MAF reading is 0 g/s. I have cleaned it and no change.

Super Moderator
1,278 Posts

You verified you’re getting the correct voltages on each wire? Have you checked the continuity between the ground at the maf and the negative battery terminal or chassis ground?

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Super Moderator
21,777 Posts
I had a BMW in the shop with a similar fault code that led us a merry dance before we solved it . Turned out it was a fuse related to the MAF that ran other stuff also and usually when it blew it causes a "short to ground" code . Might , might not apply but wouldn't go wrong to check . According to this , the likes of fuse #76 MAY be related but check others also

7620 A*VPWR 2, PCM - emission related powertrain components

Fuse Layout Ford E-Series 2009-2012

Passenger compartment

Instrument panel fuse box diagram: Ford E-150, E-250, E-350, E-450 (2011)


Assignment of the fuses in the Passenger compartment (2011)
Amp RatingProtected Circuits
130ANot used (spare)
215ANot used (spare)
315ANot used (spare)
430ANot used (spare)
510APassenger compartment fuse panel (SPDJB)/Brake-shift interlock
620ATurn signal, Hazard, Stop lamps
710ALeft low beam
810ARight low beam
915ACourtesy lamps
1015ASwitch illumination
1110ANot used (spare)
127.5ANot used (spare)
1410ASYNC®, GPS module
1510ASatellite radio
1615ANot used (spare)
1720ADoor locks
1820ANot used (spare)
1925ANot used (spare)
2015ADiagnostic connector (except stripped chassis)
2115ANot used (spare)
2215APark lamps, License plate lamps
2315AHigh beams
2420AHorn (except stripped chassis)
2510ADemand lighting
2610ACluster (except stripped chassis)
2720AIgnition switch feed
285AAudio mute (start)
295ACluster (except stripped chassis)
305ANot used (spare)
3110ANot used (spare)
3210ARestraints module
3310ATrailer brake controller
345ANot used (spare)
3510AReverse park aid, Rear video camera, Cutaway run/start
365APassive anti-theft system (PATS) RF module
3710AClimate control, Stripped chassis IP #1 run/start
3820ANot used (spare)
3920ARadio, Navigation
4115ARadio, Switch illumination, Reverse camera mirror, Automatic dimming rear view mirror
4210AUpfitter switch
4310AStripped chassis IP connector #1
4410AAuxiliary battery relay/Trailer tow battery charger relay
455AWipers, Stripped chassis Engine connector 3
467.5APassenger airbag deactivation indicator (PADI)
4730A circuit breakerWindows accessory delay
48RelayDelayed accessory

Engine compartment
Under-hood fuse box diagram: Ford E-150, E-250, E-350, E-450 (2011)

Assignment of the fuses in the Power distribution box (2011)
Amp RatingProtected Circuits
1HC Micro RelayPowertrain control module (PCM)
2HC Micro RelayStarter solenoid
3HC Micro RelayWiper
4HC Micro RelayTrailer tow battery charge
5HC Micro RelayFuel pump
6HC Micro RelayTrailer tow park lamp
7HC Micro RelayUpfitter #4
8HC Micro RelayUpfitter #3
9HC Micro RelayModified vehicle and stripped chassis run/start
10Not used
11Not used
1240A**Modified vehicle and stripped chassis run/start
1330A**Starter solenoid relay
1440A**Run start relay
1540A**Modified vehicle and stripped chassis battery
1650A**Auxiliary A/C blower
1750A**Auxiliary battery feed, Trailer tow battery charge, trailer tow park feed
1830A**Electric trailer brake, Trailer brake controller
1930A**Upfitter #1
2030A**Upfitter #2
21Not used
22Not used
23G8VA relayA/C clutch
24G8VA relayHorn relay (stripped chassis)
25HC Micro relayRun/start
26Not used
27Not used
2820 A*Back up lamp
2910 A*A/C clutch
3010 A*Brake on/off (BOO) switch
3110 A*Cluster batteiy (stripped chassis)
3250A**Blower motor
3340A**Anti-lock brake system (ABS) pump
3420A**Stripped chassis horn
3540A**PCM relay
3620A**Ignition switch (stripped chassis)
37G8VA relayTrailer tow stop — left turn signal
38G8VA relayTrailer tow stop — right turn signal
39G8VA relayBack up lamp
40ISO relayBlower motor
41Not used
4215 A*Diagnostic connector (stripped chassis)
4320 A*Fuel pump
4410 A*UpFitter #3
4515 A*UpFitter #4
4610 A*PCM keep alive power, Canister vent, PCM relay coil
4740A**ABS coil
4820A**Trailer tow stop lamp/turn signal
4930A**Wiper motor
50Not used
5210 A*Stripped chassis and modified vehicle run/start relay coil
5310 A*ABS run/start feed
5410 A*Fuel pump relay coil
55Not used
56Not used
5720 A*Trailer tow park lamp
5815 A*Trailer tow backup lamp
59Not used
60One touch integrated start (OTIS) (diode)
61Auxiliary battery (diode)
62HC Micro relayUpfitter #2
6330A**Trailer tow battery charge
64Not used
6520A**Power point 2 (glove box)
6620A**Power point 3 (left-hand B-pillar)
6720A**Power point 1 (instrument panel)
6850A**Modified vehicle
69Not used
7030A**Stripped chassis
71Not used
7220A**Cigar lighter
73Not used
7430A**Power seat
7520 A*Vehicle power (VPWR) 1, PCM power
7620 A*VPWR 2, PCM - emission related powertrain components
7710 A*VPWR 3, PCM - general powertrain components
7815 A*VPWR 4, Fuel pump relay coil
7910 A*VPWR 5, Transmission
8010 A*Cluster run/start (stripped chassis)
81Not used
82Not used
83Fuel pump (diode)
84Not used
85HC Micro relayUpfitter #1
* Mini fuses
** A1S fuses
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