Crank but no start, mazda mpv 2001

Question edited to what I think you meant to say?

https://www.fixya.com/support/r29912554-changing_battery_not_create_problems

and

https://www.google.com/search?q=2001+pontiac+firebird+reset+security+system

..

This problem can be hard to track down , it could be caused by several thing's ! A bad check valve in the fuel pump letting fuel drain back into the tank , not keeping fuel line pressure up , a crankshaft position sensor can also cause this as well as an ignition control module !
Checks
Action
DEFINITION: Engine cranks OK, but does not start for a long time. Does eventually run, or may start but immediately dies.
Preliminary
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Refer to Important Preliminary Checks Before Starting in Symptoms - Engine Controls .

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Inspect the powertrain control module (PCM) grounds for being clean, tight, and in the proper locations. Refer to Engine Controls Schematics .

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Search for bulletins.

Sensor/System
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Test the engine coolant temperature (ECT) sensor for being shifted in value. Connect a scan tool. Compare the engine coolant temperature against the intake air temperature (IAT) on a cold engine. The ECT and IAT sensor values should be within ?± 3?°C (5?°F) of each other. If the ECT sensor is out of range with the IAT sensor, check the resistance of the ECT sensor. Refer to Temperature Versus Resistance for resistance specifications. Replace the ECT sensor if the resistance is not within the specification. If the sensor is within the specification, repair the ECT signal circuit for high resistance.

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Inspect the mass air flow (MAF) sensor installation. A MAF sensor that is incorrectly installed may cause a hard start. Important: The embossed arrows on the MAF sensor indicate the direction of the intake air flow. The arrows must point toward the engine. Install the MAF in the proper direction. Refer to Mass Airflow Sensor/Intake Air Temperature Sensor Replacement .

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Inspect the camshaft position (CMP) sensor for proper mounting and/or a bad connection. A long crank time occurs if the PCM does not receive a CMP signal.

Fuel System
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Inspect the fuel pump relay operation. The fuel pump should turn ON for 2 seconds when you turn ON the ignition. Refer to Fuel Pump Electrical Circuit Diagnosis .

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A faulty in-tank fuel pump check valve allows the fuel in the lines to drain back to the tank after the engine stops. Refer to Fuel System Diagnosis .

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Inspect both injector fuses for being open. An open injector fuse causes four injectors and four ignition coils not to operate. Replace the fuse. Inspect the injector circuits and the ignition coil circuits for an intermittent short to ground.

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Inspect for incorrect fuel pressure. Refer to Fuel System Diagnosis .

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Inspect for a restricted fuel filter. Refer to Fuel System Diagnosis .

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Inspect for a contaminated fuel condition. Refer to Alcohol/Contaminants-in-Fuel Diagnosis .

Ignition System
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Test both injector fuses for being open. An open injector fuse causes four ignition coils and four injectors not to operate. Replace the fuse. Inspect the ignition coil circuits and the injector circuits for an intermittent short to ground.

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Inspect for proper ignition voltage output with J 26792 Spark Tester. Refer to Electronic Ignition (EI) System Diagnosis .

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Remove the spark plugs and check for the following:

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Correct heat range

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Wet plugs

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Cracks

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Wear

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Improper gap

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Burned electrodes

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Heavy deposits

Refer to Spark Plug Inspection in Engine Electrical.
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Determine the cause of the fouling before replacing the spark plugs if the spark plugs are gas, coolant, or oil fouled. Refer to DTC P0172 or P0175 for diagnosis of the rich condition. Refer to Spark Plug Inspection in Engine Electrical for diagnosis of coolant or oil fouled spark plugs.

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Inspect for bare or shorted ignition wires.

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Inspect for loose ignition coil grounds. Refer to Electronic Ignition (EI) System Diagnosis .

You need the basics to start the engine - fuel, air and spark. Your MAF - Mass Air Flow sensor could be dirty. Buy some sensor cleaner from auto parts store and clean it and let it dry. If that doesn't work test for spark if spark ok then bad fuel pump or fuel pump relay.

sounds like a bad cam/crank sensor

check for spark at the plug lead while cranking engine

crank sensor located off the fly wheel in transmisson

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

check the oxy sensor operation if the sensor has failed the car will run rich and start to chug. this can also be a intermittent thing

Flel regulator will only affect max fuel pressure only will not cause it to not start. try replacing fuel filter first if still does not get fuel then you need to see if it is fuel related or if you have a spark at the spark plugs, pull off a spark plug boot and put screw driver in it hold 1/4 inch away from bare metal and crank engine if you get a spark then it's fuel relateed if no fuel it can be the crank shaft sensor or the cam shaft sensor. let me know if it has fire.

Did you change spark plugs and wires? The fuel pump wouldn't cause a miss, and if it was MAF, it wouldn't run at all. It has to be either spark or timing / timing belt.