Lurching on acceleration

CONEHEAD95

MEMBER
1995 TOYOTA COROLLA
1.8L
4 CYL
2WD
AUTOMATIC
365,000 MILES

The car starts and idles perfectly. At any acceleration (even from under the hood by hand) the engine sputters and sort of chokes. If I very slowly rev the engine it will get past the middle RPM's and then run strong. When I drive, cannot get over about 25 mph. I have replaced distributor, plug wires, plugs, fuel pressure regulator, MAP sensor, IAT sensor (intake air temperature), I checked the TPS sensor in accordance with the manual - it is good. (Proper ohms increasing to infinity with turning the TPS inside contacts). There is one hose off the charcoal canister, but I think it was always like that. Have owned the car twelve years. Great car.

1 Reply

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello,

This sounds like it might be a fuel filter that is getting clogged. Here is a link down below that will explain what the symptoms of a plugged fuel filter are and how to change it:

https://www.2carpros.com/articles/how-to-change-a-fuel-filter

I also have included in the diagrams below a guide on how to test out your charcoal canister. I hope this helps.

Thanks,
Alex
2CarPros

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