The octane rating of the fuel may be part of it. Do you have a wideband oxygen sensor, contrroller and datalogger? That might help determine if it is fuel related. It isn't cheap, but it seems to help with diagnosis and tuning.
Anyway, How do the plugs look? What are they gapped at? Type of fuel injectors? Fuel pressure? Stefan -------------- Original message ---------------------- From: Dave Krulitsky <[EMAIL PROTECTED]> > I have stuttering at 18 psi (should go to 21). Timing is right, fuel should > not be a problem, except I was running 94 unleaded. I do have race fuel up to > 111 octane. What I'm thinking I will do is try the race fuel. I also may try > changing the gap on my plugs (RN9YC) Any other tips? For those who helped with > my previous problem it was damaged/incorrect map sensor wiring, and possibly a > weak coil. > > Dave Krulitsky > 1986 GLHT > 2.5, hybrid, etc. > > -----------------------REMOVE-FOOTER-WHEN-REPLYING---------------------------- > Questions? Visit http://www.sdml.org/ > > To be removed, visit http://www.sdml.org/pages/leave.html -----------------------REMOVE-FOOTER-WHEN-REPLYING---------------------------- Questions? Visit http://www.sdml.org/ To be removed, visit http://www.sdml.org/pages/leave.html
