Can anyone point me in the right direction for fixing a 02 4.4 with no throttle response?

I did a search and only found cars with occasional problems. This car starts and ticks over, but pressing the accelerator has no effect at all.

I read in this forum that the accelerator is only a variable switch, so I was going to remove and test this first. It there a way to rev the engine from inside the engine bay i.e. via the throttle body to eliminate other issues?

Any other tips or hints would be gratefully received. Current:
- 2017 L405 3.0 V6 Autobiography
Sold:
- 2013 L405 4.4 TDV8 Vogue
- 2004 L322 4.4 Vogue (BRC LPG)
- 2002 L322 4.4 HSE (having fixed timing chain guides)
- 2000 P38 4.6 Vogue (BRC LPG)
- 1981 2-door In-Vogue
- 1980 Ex-Army SIII LWB
- 1976 SIII LWB
- 1968 SIIA
Stripped for parts:
- 2003 L322 4.4 Vogue

It will be the pedal or the throttle body, first thing to do is clean and check security of the plugs to both, you cannot dismantle them at all.

You can't rev the engine without them both talking to each other.

Ideally you need a diagnostic tool which will give you live values and tell you which one isn't working, if not then you have a 50/50 chance, I'd guess the throttle body is the suspect as it is far more complex and is in a nastier environment but they are rather expensive to be changing just because you think it's faulty..

As with all things FF, you need an IID or similar or you will spend a fortune changing parts....  Pete
__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Many thanks for the pointers. Current:
- 2017 L405 3.0 V6 Autobiography
Sold:
- 2013 L405 4.4 TDV8 Vogue
- 2004 L322 4.4 Vogue (BRC LPG)
- 2002 L322 4.4 HSE (having fixed timing chain guides)
- 2000 P38 4.6 Vogue (BRC LPG)
- 1981 2-door In-Vogue
- 1980 Ex-Army SIII LWB
- 1976 SIII LWB
- 1968 SIIA
Stripped for parts:
- 2003 L322 4.4 Vogue