vortec
1/2 ton status
this isn't about my k5, it's my 94 1c500 with a tbi 4.3.
it was running great until one tank of bad gas. i don't know if it was crud, water, whatever, but it started feeling really weak, developed a minor misfire at idle, and even came close to stalling once on the highway. 2 tanks later (one chevron, one exxon), things still aren't quite right. there should be almost no bad gas left. both fillups were 22 gallons on a 26 gallon tank.
replaced fuel filter last night. all spark plugs read normal. injector spray pattern conical, as it should be. checked MAP, IAC, O2, TPS, Battery, air filter (k&n-cleaned about 5K miles ago). no codes.
ideas?
it was running great until one tank of bad gas. i don't know if it was crud, water, whatever, but it started feeling really weak, developed a minor misfire at idle, and even came close to stalling once on the highway. 2 tanks later (one chevron, one exxon), things still aren't quite right. there should be almost no bad gas left. both fillups were 22 gallons on a 26 gallon tank.
replaced fuel filter last night. all spark plugs read normal. injector spray pattern conical, as it should be. checked MAP, IAC, O2, TPS, Battery, air filter (k&n-cleaned about 5K miles ago). no codes.
ideas?
