Where is located the ground wire on mazda mpv 2001?

Question edited for a lot more clarity and toss in a LOAD of Caps
Question moved to model category.

Mazda Mpv LW5W OBD schematic from 17 pin to OBD2 16 ...

Mazda Forum https://www.mazdaforum.com > ... > Mazda MPV
Aug 7, 2015 - My Mpv has a 16 pin socket under the left side of the dash, kind of pointing down. The plug in you are looking at is for Mazda dealer ...

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SOLVED: Mazda mpv obd2 connector location

Fixya https://www.fixya.com > ... > MPV > 1998 Mazda MPV
Your ground wire connection for the OBD2 connector is located under the dash just below and to the right of the heater controls. More likely that you dont have ...
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replace the faulty sensor
the pcm makes no difference as ford and mazda are the same , just has a different badge on the front

Carlos, see if there is a fuse blown to the OBD2 port, the obd port some time shares with other accessories/things like cigarette lighter.
Check all fuses, the OBD will not work if fuse is blown.

It appears from a wiring diagram that there is no ignition control module. The ignition coils' primary circuits are grounded through the PCM. And the wires to the sensors are all from the PCM.

Here is a link if you want to see all your wiring diagrams. I found the above information under System: engine; Subsystem: fuel controls.

Free wiring diagrams and TSB's for every make and model:
http://www.bbbind.com/technical.html

If you are sure the computer is the problem... remove the original one and it will have a tag on it with part numbers. Find one at a salvage yard and compare part numbers to make sure they are the same and it should work. The only thing that may cause issues is if the vehicle has a security system and a relearn/reprogram may be required

W age of car..hard startn cud be a tuneup issue..bad dist cap..plug wires..fuel pressure reg or pump..git a data stream run w a factory scan tool....at a private shop only...for correctness n detail

It's on the side near the bottom of the engine. Follow the positive wire (red) from the battery as it goes straight to the starter.

Fig. Component Location Chart-2000 MPV

1 PCM 2 Mass air flow (MAF)/intake air temperature (IAT) sensor 3 Throttle position (TP) sensor 4 Fuel tank pressure sensor 5 Engine coolant temperature (ECT) sensor 6 Crankshaft position (CKP) sensor 7 Camshaft position (CMP) sensor 8 Knock sensor 9 Heated oxygen sensor (HO2S) (front, LH) 10 Heated oxygen sensor (HO2S) (front, RH) 11 Heated oxygen sensor (HO2S) (rear, LH) 12 Heated oxygen sensor (HO2S) (rear, RH) 13 EGR boost sensor 14 Power steering pressure (PSP) switch 15 Main relay


Fig. Component Location Chart-2001 MPV

1 PCM 2 Mass air flow (MAF)/Intake air temperature (IAT) sensor 3 Throttle position (TP) sensor 4 Engine coolant temperature (ECT) sensor 5 Crankshaft position (CKP) sensor 6 Camshaft position (CMP) sensor 7 Knock sensor 8 Heated oxygen sensor (HO2S) (front, LH) 9 Heated oxygen sensor (HO2S) (front, RH) 10 Heated oxygen sensor (HO2S) (rear, LH)* 11 Heated oxygen sensor (HO2S) (rear, RH)* 12 EGR boost sensor


Fig. Component Location Chart- 2002-06 MPV

That wire is input 4S to the powertrain control module. I dont know if having it grounded all the time will affect the powertrain control computer but it doesnt seem to want to hurt the fuel pump circuitry itself from looking at the schematics. I'd try to ground it start it then make sure of course the relay opens when you shut it off then try to drive it to make sure the grounded pin on the PCM doesnt affect the transmission.