So, yesterday I switched to synthetic royal purple, new filter, seafoam smoke show first (surprised how much since I just did it 2-3 months ago and 7 months ago) and sprayed some tb/intake cleaner and wiped up gunk.. oh, and I rotated the dizzy back a tiny bit as it looked a bit far forward, going to set base timing properly shortly, last time I tried one of my cams was off a tooth.

Now my new problem is, at part throttle, like very very part, cruising, it seems to be misfiring or something? Car will jerk, engine seems to kind of skip. Almost as if it's hitting a fuel cut. I suppose it's possible that my TPS was wiggling between 0% and 1% and was hitting deceleration fuel cut.

I'm gonna hook up the laptop tomorrow and do a datalog and see if I can reproduce and see what it says but I thought I'd seek ideas.

Edit:

EH2 b18b1 n/a ectune..because apparently it matters..? Didn't think this issue warranted more detail, but I guess rules r rulez

 

Cool....let us know how it goes.

 

I pulled the plugs during the oil change, this is how they looked.

They're only 7 months old. About 15,000km, almost exactly.

 

See announcement at the top of the forum -- Add car information to your first post to avoid having your thread locked.

 

So, went to set my base timing and had to burn a chip to change my SCC to lock my timing and my burner (or the chip) died. Had to limp home, borrowed a stock ecu today and got my other type chip (sst was in car, atmel testing tonite, sst wouldn't erase, atmel doesn't need be erased)

New plugs and stock ecu, still sputtering.

 

Wierd it was still doing it w stock ecu, though it was CEL'd with no o2 (has wideband)

Might be because my idle is lean (16 to 17) but above says prob not? Then again, didn't have w/b hooked up when stock ecu was in, will have to check and verify. New plugs didn't help.