Loss of Power, backfiring - 1991 90 20vq sedan

[Brendan]

On Monday 14 July 2008, DK wrote:
> Not sure if this car has it or just the turbo cars do - see if there
> is a spare fuse on the fuel pump relay. Any ECU fault codes?
> How about the timing? is the distributor adjusted right and does the
> advance work? Did you check for any vacuum leaks? could even be a
> leaky manifold gasket.

All good ideas, but I am concerned about it only being in gear. Timing/leaks 
would be engine-specific, not gear/driving-specific, I would imagine, would 
it not?

But codes, I'll have to find a way to pull them out of that re-routed wiring.