Jump to content


MattLS400

Regular Member
  • Posts

    2
  • Joined

  • Last visited

Everything posted by MattLS400

  1. Interesting.. Lexdesert has your problem been solved ?
  2. Good day folks, after having executed a Diagnostic on my 1996 LS400 with a 1UZ-FE engine, no trouble codes are appearing. FIRST START on a morning (engine is cold) --- The vehicle works beastly perfect in traffic and on highway. No smoke, no rough idling. Normal Idle at 500 RPM After 20 minutes (when the engine is warm) ----The vehicle begins to rough idle. No smoke. ------------------------------------------------------------When in traffic, it rough idles and the RPM drops below 500RPM and consequently cuts off. UNLESS while in traffic, I put the vehicle in Neutral and Accelerate\ REV till the Tachometer needle reaches at least the 2000RPM mark then I release the acceleration, only then the rough idle stops and idles normally again at 500RPM….and I work it like this “coasting” in traffic. However, if I drive in traffic accelerating under 2000RPM, the rough idle and shutting off would persist. -------------------------------------------------------------When driving on highway (80 mph and more) which is above 2000 RPM on the Tachometer, the vehicle does not rough idle, it runs smooth. However, If I am driving slowly on the highway (approximately below the 2000RPM) the rough idle and jerking would persist. POINTS TO NOTE Mileage-- 120, 000, and stopped there since, The Speed-O-Meter has stopped working. The temperature never reaches above half level, it’s always either half or below the half level. I have changed the following; all 8 injectors to new injectors 23250-50020 Oil Engine Crankshaft Sensor changed to new DENSO 90919-05002 Fuel Filter inside of the fuel-tank to new 23300-50060 8 Spark Plugs changed to Platinum DENSO Spark Plugs Engine Coolant Temperature Sensor 2 Ignition Coils Fuel Pump inside of the Gas Tank jumper wire or "direct" run from terminals 3 and 4 in the fuel pump relay ECU- Capacitors changed and board fully inspected Nonetheless the problem still persists. Any assistance would be more than greatly appreciated.
×
×
  • Create New...

Forums


News


Membership