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[2001CatOwner]

I ran a OBDII scan as my car was hesitating.  It told me my Bank 1 & 2 was too rich.  I was told it was  fuel pressure.  What do you all think.  And i have this ticking sound after i engage the gear out of park, anyway to rid of the ticks

[TheBoy]

I would say more likely the o2 sensors, as fuel pressure could be trimmed back by ecu

[JasonH]

Leaking exhaust manifolds? Air gets in, ECU thinks lean and richens up the mix?

[Matchless]

What trouble codes were stored?
Did someone measure the fuel pressure? If yes then you have either a faulty fuel pressure regulator or the fuel return pipe to the tank is blocked or squashed somewhere. If no then get the pressure measured.

Has any work been done recently around the air intake trunking or around the back of the engine?

[Matchless]

I would say more likely the o2 sensors, as fuel pressure could be trimmed back by ecu

Fuel pressure is not controlled by ecu. In response to a rich mixture signal from lambda sensors the ecu can only shorten the injector pulse duration (over a limited range)

[Kevin Wood]

I must admit, with both banks complaining, I'd be looking for something common to both, so fuel pressure may be a possibility although fuel pressure regulators are pretty reliable things. Could be that something has taken out both lambda sensors.

Ticks could point to exhaust leaks, however, which ties in with JasonH's idea.

Would be good to get the exact fault codes, though.

Kevin

[TheBoy]

I would say more likely the o2 sensors, as fuel pressure could be trimmed back by ecu

Fuel pressure is not controlled by ecu. In response to a rich mixture signal from lambda sensors the ecu can only shorten the injector pulse duration (over a limited range)

Sorry, correct, thats what I meant - ecu would trim down mixture via injector pulse length...

I'm obviously tired, so bedtime for me!

[cem_devecioglu]

Agreed ...lambda sensors or less possibly MAF

[Matchless]

Leaking exhaust manifolds? Air gets in, ECU thinks lean and richens up the mix?

Its the lambda sensors that are indicating insufficient O2 in the exhaust which is a 'go lean' signal.

[Matchless]

Something common to both banks...

Air mass meter indicating much greater air flow than actually flowing....faulty / wrongly connected?
Coolant temp sensor faulty / not connected.

[2001CatOwner]

I had installed a cold air in take... if thats the cause what would you all suggest for intakes.

[Matchless]

I had installed a cold air in take... if thats the cause what would you all suggest for intakes.

Check that you didnt mix up the air temp and multi-ram connectors when playing with the intake.
What air filter are you using....is it one that is oiled? could be that oil has coated the airmass sensor element giving incorrect signals.

The standard intake takes air from infront of the radiator and delivers it to a large panel filter so I wouldnt expect any improvement from intake mods except an increase in noise.