Flooding CFI
Thread Starter
2nd Gear
Joined: Aug 2019
Posts: 2
Likes: 0
From: Madison Wisc
Flooding CFI
New to forum, looking for help to understand fuel issue.
Engine will start briefly and then flood out without any pedal applied.
When car was drivable, it had issue of idle increasing and decreasing by its self.
Removed plugs to find wet. After dried plugs again brief start then flood.
Engine will start briefly and then flood out without any pedal applied.
When car was drivable, it had issue of idle increasing and decreasing by its self.
Removed plugs to find wet. After dried plugs again brief start then flood.
Melting Slicks
Joined: May 2014
Posts: 2,898
Likes: 592
From: New Port Richey FL
With air cleaner cover off look Down the Barrels have someone cycle key but not Start Car The injectors Should not Drip if they do their Leaking. With car running again Look at Injectors It should look Like rain on the Plate Not a Hose.
if all is well there Look at a weak Ignition.
if all is well there Look at a weak Ignition.
Last edited by s carter; Sep 5, 2019 at 10:15 AM.
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Cross fire is unique to 82 and 84. You want to get 1984 Corvette factory manuals.
Flooding : codes? Vacuum leak(s) CFI uses MAP sensor low vacuum equals more fuel.
Injectors dripping fuel or cycling with key in run engine off?
Coolant sensor. Early sensor used round connector should be replaced with revised inline 2 terminal sensor and connector. Lower coolant temperature more fuel.
Ground wires tight and not corroded
Flooding : codes? Vacuum leak(s) CFI uses MAP sensor low vacuum equals more fuel.
Injectors dripping fuel or cycling with key in run engine off?
Coolant sensor. Early sensor used round connector should be replaced with revised inline 2 terminal sensor and connector. Lower coolant temperature more fuel.
Ground wires tight and not corroded
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Increasing/decreasing idle is a sign of a too lean A/F ratio.
Kevova has a good suggestion to see if the injectors are leaking fuel when pressurized but not running.
Do you have access to a scan tool? If you do, I'd get it on data stream and fire it up, throttle it to keep it running and start looking at things that don't "jibe". Something won't.
Kevova has a good suggestion to see if the injectors are leaking fuel when pressurized but not running.
Do you have access to a scan tool? If you do, I'd get it on data stream and fire it up, throttle it to keep it running and start looking at things that don't "jibe". Something won't.
