I have a 1991 Camry 2.0 , auto w/ac. starts & idles ok, under the load of a tip in acceleration it will stutter, and then smooth out and accel ok. plugs,cap,rotor & coil are very new. They were put in last year when it quit running on the highway. the new coil made it run again. two months ago it quit on highway again, found coil bad again. new coil made it run again. replaced fuel filter today, found it had a lot of dirty gas on the filtered side. no change... HELP!!!!

SOURCE: bad stumble on acceleration pops through t- body.

Sounds like the fuel pressure regulator. Could also be that the timing jumped. But I'm leaning towards the pressure regulator. Hope that I could help. Best wishes.

SOURCE: engine idle? fuel filter or injectors?

Dont bother with the filter, its under your intake I believe, but Im sure its not the problem. yes, only use toyota plugs and wires

SOURCE: 1997 ford e 350 v-10 stutters when accelerating. Smooth otherwis

Water jackets pretty tight on heads. Replacing engine right now for this problem on customer work van. Pull plugs and look for any cylinders with antifreeze in them. This truck had 250k and same problem.

SOURCE: WON'T START

Hello,

It would be nice to know the past history of the car. For example, does the engine suddenly stall or does it slowly lose rpm and then stall, or does the car run fine and then sometimes idle erratically but never used to stall and now does. Can you wait 10-20 min and then it starts? etc?

Please check the Coolant Temperature Sensor (via an Ohm meter) for an Open circuit (infinite resistance) or possibly high fluctuation resistance.

Check that approx. +5V is present at the Sensor when ignition is on (engine Not running) by removing the connector and probing the connector.

Probe resistance during idle when engine is Cold and watch as the engine Warms to fully warm (normal) temperature. When cold, the resistance should be high (about 2K ohms to 4K ohms) and should decrease down to about .3K ohms fully warm (See page 6-8 in Haynes Manual).

If this issue is intermittent, it may be difficult to see it however large fluctuations in resistance when the engine is warm (1K ohm or so) could indicate the sensor is flaky. If the Sensor is open (infinite), replace the sensor.

Note: I don't recall for sure, but this error may be a "double trip" in that it is only logged if the issue occurs more than once (2+). Also, an error in this sensor is ONLY logged in the event of a short (0 ohms) or an open (infinite resistance) and is Not logged for erratic behavior.

SOURCE: 1989 toyota camry 232000miles Runs rough at idle

YOUR problem is the carby acc pump and idle jet ...... what you need to do is remove airfilter and take the top off the carby and you should see a small ball and spring under gasket ...when you open the throttle it will pump petrol to the small pick up jet and the other jet will take over ...clean out carby jets and rebuild and that should be ok