86 Camry loss of power under load

There maybe dirt.debris in the bottom of the petrol tank,...then when you first take-off the debris moves and partially bolcks the petrol intake to the pump. After you have stopped and re-started, the small amount of debris caught at the pump inlet clears rearwards with the rest of the materal.

Just a thought,....Jason

Here's my guess:

Perhaps you've heard, people sometimes try to increase flow through the exhaust system to improve power. Well, if your exhaust system is plugged, the reverse can happen, and you will lose power. Sometimes the catalytic converter can become plugged. I suspect this by the way you describe the problem and hearing other similar complaints solved. The catalytic converter can be expensive. The correct test method involves getting the right equipment and removing some parts in the exhaust. A rough alternate method has been suggested, and I copied it here. Basically, it is to connect a vacuum gauge to the intake manifold, hold the engine at a mid rev range and see if the intake vacuum begins to fall due to exhaust restriction.

You can also do a rough test using a hand-held vacuum gauge and monitoring intake manifold vacuum -- if the vacuum starts falling (i.e., intake manifold pressure is rising) at high rpm with a constant throttle opening, the exhaust is probably plugged up.

Jason, Thanks for the reply. I have thought of trying to connect a pressure gauge to the fuel line and try to drive around so it can be monitored, but this can does not offer a continent test port other than removing the cold start injector and putting the pressure gauge there. It is a "banjo"?? type connection that I have never found a fitting to mate to it.

Thanks

-- Tony Marsillo Nutmeg Repair

Don't know Tony,...but it would be ideal. This type of problem once persisted in a Valiant V8 my cousin had. It turned out to be a cracked inlet manifold. The symptoms were reversed ie when the manifold heated up, the crack opened admitting air, causing the engine to run rough and cutout.

I had a Hillman once that had a leaking headgasket. It would start OK, then about 1/2 hour later would stall as the small amount of water leaked directly onto the plug electrodes.

Hope you find it,....Jason

HAD SAME PROBLEM!! try to replace the sensor in you exhaust just before the catalysator.

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