NO POWER 2000-3000 RPM, OBD II CODES: P0300,P0302,P0304,
FUEL PRESSURES OK, 3 BAR/44PSI @ IDLE VACUUM OFF @ PRESS REG,
2.5 BAR / 36 PSI VACUUM ON @ PRESS REG,
ENGINE OFF, 5 MINUTE RESIDUAL PRESS + 2BAR /35 PSI,

NEW IGN COIL, IGN CABLES, SPARK PLUGS, DISTR. CAP + ROTOR,

IT RUN OK PRIOR TO GETTING A NEW EXHAUST SYSTEM WELDED ON,

EVEN TRIED A NEW AIR MASS METER, ALL TO NO AVAIL,

STRANGE OBSERVATION; WITH THE 3 PRONG PLUG DISCONNECTED @ DISTRIBUTOR,
ENGINE WILL START AND IDLE.

WHAT ELSE NEED I CHECK OUT, I DO NOT HAVE A DECENT WIRING DIAGRAM,
(ALL WE HAVE IS A USELESS HAYNES MANUAL).

PLEASE HELP!

 

ITS THE BASICS!

FOUND OUT THAT THE CATALYTIC CONVERTER HAD A LOOSE CLUMP OF CATALYST @ THE INLET CHAMBER WHICH OVER TIME BEAT THE REAR CATALYTS' HONEYCOMBS ALL TO HELL AND RESULTED IN A MASSIVE FLOW RESTRICTION DURING ACCELLERATION!

(FUEL FLOW OK, 1 + LITER IN 30 SECONDS)

MANY THANKS TO WAYNE'S VW REPAIR IN WEST VALLEY CITY UTAH FOR HIS
TIMELY AND USEFUL ADVICE, GREAT GUY , GREAT HELP !