07-06-2009, 02:16 AM
Join Date: May 2008
Location: St. Augustine FL
Total Cats: 2
stumbling, jumpy, and rough idle
Never wanted to post this but at this point I can't fix it myself.
So the problem I'm having is that during idle every couple of secs the car drops up to 200 rpm and bobbles about. It sounds like it's missing. During cruising it begins to get jumpy like a push pull felling not through out entire range mainly when I'm in third doing 45 and it's around 3500 rpms. Now I've thought of many things (CAS, fuel delivery, INJ's, timing, spark plugs and wires, coil packs, and pretty much my wannabe tune).
*Plugs are not old and gapped correctly I believe-1mm
*Plug wires no more than 12k on them and are NGK
*Just changed fuel filter and fuel pump filter
*Timing is at 10*
*Had a lot of rust in fuel tank, so I presume my injectors may be f'ed
Just let me know what you think I should check/ adjust.