1995 Malibu Response with 350 Tournament Ski EFI had SUDDEN trouble on the lake last summer. Went from running perfectly to running rich in an instant. Then plugs fouled and I got a tow. Luckily it was the last day of summer!
Here's what I've done so far:
-replace fuel filter
-tested and replaced most all electrical engine sensors with proper marine sensors
-replaced plugs, wires, cap and rotor
-check for even spray and leakage of injectors
-check timing marks at TDC (perfectly aligned)
-changed engine oil now several times, and haven't run engine for more than a few minutes total since.
What's next? I am thinking maybe fuel pump...
Anyone have this problem before that can lend a hand? Thank you!
Here's what I've done so far:
-replace fuel filter
-tested and replaced most all electrical engine sensors with proper marine sensors
-replaced plugs, wires, cap and rotor
-check for even spray and leakage of injectors
-check timing marks at TDC (perfectly aligned)
-changed engine oil now several times, and haven't run engine for more than a few minutes total since.
What's next? I am thinking maybe fuel pump...
Anyone have this problem before that can lend a hand? Thank you!