Fuel starve in left or right corners?

[KnifeySpoony]

In my duratec powered 420r, I Believe the fuel pump pickup is on the left side of the tank. However from all my googling I'm only reading about people getting fuel starve in right handers (maybe those are different setups?) Today at Laguna, twice in turn 2 (long left hander after downhill long hard braking zone) with about a third of a tank (can never tell with these gauges, but was only the second session after a fillup), I got a very brief but severe hesitation. No popping, which I've heard in other cars during fuel starve. No issues elsewhere on track. Otherwise, car flawless all day. 

 

Could this be starvation or should I be looking for other causes? I've always  run two 20min sessions on a tank without issues, but maybe burning more fuel today from pushing harder with sticky tires. (New set of A24 ZZR, PR day)

[Pokey]

Wild shot in the dark, but you might check to make sure your crank sensor hasn't started backing out.

[KnifeySpoony]

Interesting, someone else mentioned a possible sensor issue too. I will have a look over the sensors. Aren't they clipped in though?

[wdb]

Is there a low oil pressure shutoff?

[KnifeySpoony]

Not that I'm aware of. And I'm on a dry sump so that seems unlikely. I will review my video though monitor the oil pressure gauge.

[Pokey]

7 hours ago, KnifeySpoony said:

Interesting, someone else mentioned a possible sensor issue too. I will have a look over the sensors. Aren't they clipped in though?

 

Yes to having a spring clip holding the connector to the sensor, but the sensor itself can start to work itself out.  A lack of signal from the crank will cut the ignition and, at least in my car, the fuel.  For me the problem arose on the track in fast corners.  If that isn't it then I would consider manipulating the harness with the car idling to see if you can trigger a stall.

[KnifeySpoony]

Sensor is clipped in securely but I will fiddle with it. 

[Pokey]

32 minutes ago, KnifeySpoony said:

Sensor is clipped in securely but I will fiddle with it. 

 

But is the sensor itself in there nice and tight, or has it backed out a bit?

Edited Monday at 01:14 AM by Pokey

[KnifeySpoony]

Hmm it felt secure (ie no wiggle to it), but i could see well to see if it had backed out of the engine itself. I think i saw a couple screws holding it in... Just nip them up? 

[Pokey]

Might just be one screw, can't recall, but, yes, make sure it is secure.

[Pokey]

Assuming that isn't the solution, I'd try moving the harness around while idling, particularly the connectors that lead to the injectors and the coils.  Different car and different symptom, but I chased random and intermittent stumbling that was caused by a bad pin in one of those connectors.