WebJun 1, 2024 · Fuel Pump: On 4.3L, 5.0L and 5,7L a pressure regulator in the TBI keeps fuel available to the injectors at a constant pressure between 62 and 90 kPa (9 to 13 psi). The pump is designed to provide pressurized fuel at about 125 kPa (18 psi). On 7.4L TBI applications regulated fuel pressure is 179 to 220 kPa (26-32 psi). WebOct 8, 2012 · Runing rich on idle can have several causes, for example: - Throttle Position Sensor failed or misadjusted - Idle Air Controller (IAC) - Coolant Temp Sensor - Fuel …
1990 chevy 350 tbi running very rich(gas running out of tail-pipes…
WebDec 18, 2014 · 1990 chevy 350 tbi running very rich(gas running out of tail-pipes. 1990 chevy 350 tbi running very rich(gas running out of tail-pipes and seems to be misfiring. I have Replaced Fuel pump,fuel filter Dist.cap with rotor button,Dist. pick-up,Eng. temp sensor,Ignition m ... WebSep 13, 2024 · Discussion Starter · #1 · Aug 19, 2024. I have a 1993 Chevrolet C1500 with a TBI 5.7/4L60. There is a variety of strange things going on with this truck, so I thought I would give this forum a try. A couple years ago, I rebuilt the engine and kept everything bone stock. After installing the rebuilt engine, I started immediately having issues ... sharon towry springfield al
chevy k3500: 1991 3500 with tbi, runs rich and eating alot… - JustAnswer
WebOct 11, 2013 · Engine running very rich. Runs rough, hesitates, stalls, o2 reading rich. ... 1990 Chevy truck was running very lean (white plugs) with a rough idle. I changed the … WebJul 14, 2006 · 471 Posts. #3 · Jul 13, 2006. anything over 160 degree's should be in closed loop (feedback) Most all of the scanners will show open/closed loop and sensor data. Running rich on a TBI system is usually one of, Too high fuel pressure (not common) bad o2 (common) bad Map sensor or vacuum to it (TBI carboned up in base) (common) bad … WebOct 26, 2024 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ... porch ceiling blue valspar