06-11-2020 | #11 | |
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
|
Re: Fuel pump not running.
Quote:
My point is, it is either a SPARK issue or a FUEL issue. One or the other needs to be eliminated so you can concentrate on the missing (FUEL/SPARK) key ingredient. SPARK: Regardless of what a spark tester indicates, if the plug is WET but the tester says there's current, then the spark energy is bypassing the spark gap, especially so if the #1 plug looks normal! Start there. FUEL: IF however, the #6 plug is dry except perhaps for some oily residue (from the crankcase), coupled with the fact that if the #1 plug (in this case) is "normal", then fuel is the issue: either the fuel is blocked within the injector, or the injector itself is bad (most often the internal actuator windings are shorting out - especially injectors susceptible the insulation on the internal windings being dissolved by alcohol. This phenomenon is easily detected by measuring the resistance across the injector WHEN IT IS @ OPERATING TEMPERATURE [especially]! My best guess (assuming the #1 plug looks normal) is a fuel issue which narrows it to a bad injector or an internal blockage perhaps??
__________________
Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
|
|
|