wilsomy

i have replaced both ignition coils, rotorary buttons, spark plugs and wires. my catalytic converters are still glowing red. slow acceleration, low idle. what could be my other problems, pls adv

having problems w/ 92 ls 400, low idle, hesitation, slow acceleration. wiring loom over right front fender, grounded out and wires touched and are broken, tire scrubbed them, wiring loom connects to the ECU or ECM, pls adv, on what the problem could be that causing my symptoms, fuel is running very rich

Sounds like EFI systems is running in limp mode, a failsafe condition when there is a problem in the system (to allow you to get to a service place or home). What changed recently? Did this just happen out of the blue or did it gradually get worse? Could be many things MAF, plugged fuel filter, low fuel pressure (pump or pressure regulator), or Throttle position sensor. Maybe ignition related but my guess is rule out fuel system first. You didn't just wash the engine did you? That could create ignition problems. Frozen fuel line due to mooisture in fuel? Are you in cold area? If so thry some gas line antifreeze like HEET. before the low, rough idle, extremely slow acceleration, problems occured. the car was running fine, the only problems was that i'd have to disconnect the battery because a vaccuuming or pumping sound constantly on was heard from the throttle body area, every time car was shut off. 3 weeks after the car has Low, Rough Idle, Extremely Slow Acceleration, loud in the muffler area. thats when i discovered wire loom w/ abt 20 wires, under passenger fender, touched, shorted. car would shut off when wires touched. reconnected the wires in the wire loom, weird sound coming from the throttle body area, after car was turned off stopped. But still having low rough idle and slow acceleration. pls adv

1992 lexus ls400 has low, rough idle, extremely slow acceleration. car is giving cel code engine - 25, 26, trac code - 11, 51. wire loom w/ abt 20 wires, under passenger fender, touched, shorted. car would shut off when wires touched. reconnected all wire and car still has low, rough idle, extremely slow acceleration. please advise.

1992 lexus ls400 has low, rough idle, extremely slow acceleration. car is giving cel code engine - 25, 26, trac code - 11, 51. wire loom w/ abt 20 wires, touched, shorted. car would shut off when wires touched. reconnected all wire and car still has low, rough idle, extremely slow acceleration. please advise.