Es 250

[acerich52]

HAD SLIGHT MISS, DIAGNOSTIC SAID #6 INJECTOR, REPLACE WITH NEW, NOW MISS IS WORSE AND GAS MILAGE WENT DOWN BY 6 MPG

[steviej]

first, STOP YELLING. Please don't type in all caps, it is considered rude on this site.

second, did it say #6 cylinder or injector? It may have been the spark plug and not the fuel injector. Also while the car is running, spray the wire with a mist of water, if the engine starts to bog or missfire, it may be the wire and not the plug.

steviej

[cruznroadking]

Inspect the distributor cap & rotor while your at it. A lot of times they are overlooked. Replace them if they're worn & pitted.

[ArmyofOne]

HAD SLIGHT MISS, DIAGNOSTIC SAID #6 INJECTOR, REPLACE WITH NEW, NOW MISS IS WORSE AND GAS MILAGE WENT DOWN BY 6 MPG

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ok, the ES250 ignition system is noit very elaborate. its all mchanical, unlike newere lexus' with electronic ignition.

it is very simple to diagnose.

start the engine, pull off the #6 spark plug hwire at tyhe distributor. if the car doesnt change the way its idling, then the plug or the wire is bad.

to tell if the wire si bad, reconnect it to the distributor, and disconnect the other end from the plug. take that end and place it near the valve cover. if it sparks...your wire and distributor is working correctly.

if this is the case, replace your plugs.