Engine is misfiring and jerking?

My 93 corolla has misfiring issues and it will also shut down on me on the road but starts back up with no problem. The check engine light comes on and off as well. I changed out the distributor and checked the cap and roter but the it still has the same problem.

Engine Mechanical problem
1993 Toyota Corolla 4 cyl Front Wheel Drive Automatic

I have a 1993 toyota corolla 1.8L engine My engine misses at idle speed and let the engine worm up idle speed from 750 rpm to 650 Rpm for a few seconds and back up to 750., It feels like its looping but im not sure. I can hear from the muffler a backfire of air and condensation from the muffler. I had the computer checked but no codes. I have changed the plugs, boots, fuel filter and checked the coils. What can be the cause.

Hey there.
I have a 92 toyota corolla RV. 1.8l (lift back type). And it miss fires ALOT under load. Changing all spark plugs fixes the problem for about two weeks. Then its back. Changing plugs individually does not help which has me confused. Has new leads, new dizzy cap, and the plugs appear to be fine. All edges are still very sharp. Oh and when the engine is cold she works fine, problem temporarily gone. But once shes up to temp its back. No mechanics I know can explain the problem. Has anyone heard of this before? Please help.
Thanks
Carl

My car listed above Seca hatchback has starting missing and carrying on. I have changed Ignition coil and distributor cap and no change. What else can I do?

Hi, I recently got my oil changed and engine flushed at Mr. Lube and shortly after I noticed that it felt like the engine was missing. I popped the hood and noticed that the thing the distributer cap is attached to that goes into the engine and I assume attaches to the over head cam was not bolted on. There are to bolts and both were gone and I could move the whole thing around. I pulled it out of the engine and now I cannot put it back in. Im wondering if Mr. Lube removed it to do the engine flush and didn't put the bolts back in. Would that explain why the engines missing and why can't I get it back in? Thanks.

Yesterday I was driving to work and when I left a friends house for the first time my car started to skip as if it wasn't getting enough fuel. So at first I thought my either backfiring or I needed to change the fuel filter but then about 10-15 minutes later it stopped and was running normal again I checked all my fluids everything is right where it is supposed to be. So my question is should I go back to my original theories of it either backfiring or just a clogged fuel filter or is it something else that I am missing.

Thank you for the help but I had actually found the problem to be the rotor in the distributor cap after I changed that it started like normal.

Hi guys,

My engine seems to misfire or knock when driven aggressively. I'm not sure but it feels like it hesitates for like half-a-second when I really floor the gas very fast. It drives perfectly when driven nicely and I can feel the pull really well, the engine had a new timing belt, new oil, new gear oil, timing was set, the distributor was cleaned and new oil seals and everything. I even changed the distributor pickup coil. Is that it? Is it the new pickup coil? And the funny thing is, I marked the previous timing of the distributor before I took it out now when I put it back, I had to advance the timing so far away from the previous mark which was I think was the best timing I had. I took the distributor out, checked it again and put it back, and still my car seems like misfires when driven aggressively. Everything's okay except that. When I drive moderately, all is okay. My friend told me to check the vacuum advance and maybe somewhere in the exhaust there's a leak.

Any ideas? Please.

Thanks a lot and more power!
Jack

Thanks!

I have new Bosch spark plugs and new Wires as well, I'm using the same fuel ever since so that leaves me checking the coil, injectors, and vacuum leaks. I don't think I have an EGR valve, or my exhaust could be leaking.

Thanks. More power.
Jack

Car can start fine, but when driving at low speeds its missing, in high speeds it is fine