btw that is called misfire.
heard and felt and low power when it happens. misfire is violent.
bogging is another set of symptoms.,
yes, fixing one bad thing in a field of many , one seen no change,
like a 2 broken legs, one heals, but still cant walk, same deal.
never seen a 93 with out like 15 major problems, all ignored, by previous owners, some folks don't act until car stalls then wonder why fixing 1 prob, is not the cure.
oldest story on old cars, for 100 years now same same sad story.
The truth is ,EFI lets you run a very ratty engine., in fact limphome mode is just like that, runs like crappy lawnmower but runs.
the word rough means misfire.
and there are 3 class failures, that cause that. (engine, spark ,fueling)
bad engine, compression bad, on one or more cylinders the new timing belt , shows checking lash, during the new belt, if skipped, the lash can be wrong, and when engine gets hot the lash goes to zero and it burns the valve up and misfires, all this is service, at the 60k mile mark... new valve cover gasket or those 4 seals in the kit, in the 4 spark wells leak and that oil puddles up there, cause sparks to short out and misfire,
what's more, sure injectors clogged, or bad wiring to them. lots if issues with injectors or just 1.
if spark ok, then its the above, or the ECU has bad inputs.
This car, the ECU creates all spark and advance, in calculates all injection rates base on sensors..
This ECU is know to have bad caps, see my bad caps page.
just type ECU in the search box. and leaking caps show up. they love to leak, 89-1995
heard and felt and low power when it happens. misfire is violent.
bogging is another set of symptoms.,
yes, fixing one bad thing in a field of many , one seen no change,
like a 2 broken legs, one heals, but still cant walk, same deal.
never seen a 93 with out like 15 major problems, all ignored, by previous owners, some folks don't act until car stalls then wonder why fixing 1 prob, is not the cure.
oldest story on old cars, for 100 years now same same sad story.
The truth is ,EFI lets you run a very ratty engine., in fact limphome mode is just like that, runs like crappy lawnmower but runs.
the word rough means misfire.
and there are 3 class failures, that cause that. (engine, spark ,fueling)
bad engine, compression bad, on one or more cylinders the new timing belt , shows checking lash, during the new belt, if skipped, the lash can be wrong, and when engine gets hot the lash goes to zero and it burns the valve up and misfires, all this is service, at the 60k mile mark... new valve cover gasket or those 4 seals in the kit, in the 4 spark wells leak and that oil puddles up there, cause sparks to short out and misfire,
what's more, sure injectors clogged, or bad wiring to them. lots if issues with injectors or just 1.
if spark ok, then its the above, or the ECU has bad inputs.
This car, the ECU creates all spark and advance, in calculates all injection rates base on sensors..
This ECU is know to have bad caps, see my bad caps page.
just type ECU in the search box. and leaking caps show up. they love to leak, 89-1995
http://www.fixkick.com