Cranks over but will not start the fist time

There could be a few reasons why your car's crankshaft may not be turning at the correct speed. One possibility is that the engine may not be getting the fuel it needs to run correctly. If the engine isn't getting the fuel it needs, it may not crank properly or at all. Another possibility is that there could be a problem with the crankshaft itself. In this case, you would likely need to replace the crankshaft.

Engine cranks over three times an stops ? starter or battery cables . does it crank over slow ? Save yourself some money an take it to a ASE certified repair facility !

If it cranks smooth as you say there may be no compression in which case the timing belt is broken! Not good.

check the seal at the tank may be leaking air.

Can you be more clear? The pump only runs for 2 seconds until the engine starts cranking and then it stops immediately when cranking stops.

you must RUN the SCANNER/computer for better diagnostic and fix it. YOu can have some faulty like: PCM+BCM+ignition coil, sensor, etc. see the diagram attached.
God bless you

I would be looking for fuel first a faulty fuel pump. second seeing if you have spark, bad wires or plugs or even distributor, timing could be out

I always start my '88 RX7 with a 2 start procedure. First start is short about 3 engine revs...second time it always starts.
If I don't do that it cranks & cranks.....try it.

have another person help with this.Tapping one at a time on the black relays (located in the power distribution box in the engine compartment while you are cranking the engine. BE CAREFUL of moving engine componets !!!

SUBJECT:
Long Crank Time Due To Possible Contact Of Camshaft Sensor To Camshaft Gear
OVERVIEW:
This bulletin involves the replacement of the engine camshaft sensor.
MODELS:
2007 (JK) Wrangler
NOTE: This bulletin applies to vehicles equipped with a 3.8L engine (sales code
EGT).
SYMPTOM/CONDITION:
The customer may experience one of the following conditions:
a). Long engine crank time.
b). Two engine start attempts prior to engine starting.
c). Due to the “TIP Start Feature” on automatic transmission equipped vehicles, once the
ignition key / switch has been released from the “START” position, the starter may stay
engaged for up to 10 seconds while the engine attempts to start.
The above conditions may be due to the position of the camshaft sensor to the camshaft
gear. The sensor spacer gasket may have come loose during engine assembly and
caused the camshaft sensor to be adjusted too close or in contact with the camshaft gear.
DIAGNOSIS:
If the above condition is present perform the Repair Procedure.
PARTS REQUIRED:
Qty. Part No. Description
1 04686353 Sensor, Camshaft