Okay I bought an Equus 3130 because I thought I may need it in the future in addition to now. The LTFT's are 16.4 like you said they might be. I had checked with the brake clean method and had no change in the idle. I had planned on doing plugs and wires and a fuel filter this weekend but what else do you suggest I try? Order of ease and or cost would be great. Sorry to be a PIA but maybe someday I'll be able to answer a question for somebody too. Thanks again.