gforceman

Sp 515 ...plugs. . I can watch live data. In torque. Cats r running about 800 degrees front 02 sensors r flip floping from 0.2. To. 0.7 volts the rears. One moves from 0.2 to 0.6 the other sits on.0.7 .. and sometimes moves.. but don't think that's contribution to a rough idle and low power when warm.. I think a tensioner seal maybe blew causing rough running but oil is at 30 idle... what can look at in live data.. of what's normal or not

Throttle only opens 75% when pedal is to floor I did the pedal trick to no aval
Rpm is 675 at idle

flamehead16

is what you feeling like missfire happen when in park or on the brake at like a stop sign or stop light?

gforceman

Feels like all cylinders are affected or more than one is
More when engine is full warm. Can feel it it when cold just not as much.. tryed to unplug each coil then injector to isolate. But when doing that its a full blown misfire
. The rough is still there.... after I did the timing components it ran very good smooth and power.. 4 months later.. ran through water after a storm plug well #1 half full of water not coolent .. replaced plug and coil then rough idle also had an oil pressure problem same time also and a little knocking .. knocking went away but oil was at 20 psi .. lately its been at 30. At idle .. I though timing related is for the roughness. Had a 0430 cel a month ago replaced the injectors on that bank