Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

Erratic a/f issue, boost car, Moto 60s, Walbro, hotwire

Thread Tools
 
Search this Thread
 
Old 03-12-2006, 09:13 PM
  #1  
TECH Junkie
Thread Starter
iTrader: (10)
 
GrannySShifting's Avatar
 
Join Date: Nov 2001
Location: Glen Burnie, Md
Posts: 3,943
Received 18 Likes on 12 Posts

Default Erratic a/f issue, boost car, Moto 60s, Walbro, hotwire

Air fuel from tip in to shut down - avg around 11.8:1, but highs and lows of 14:0 registering to 10.5:1 and I mean QUICK jumps

Not really sure what the cause is, just happened to throw some race gas in the car right when it started - pretty sure that has nothing to do with it

Picked up 40 hp playing with the tune on Cam2 purple, not even much more octane or the "right" gas, butl erratic a/f I dont like. Changed WB sensors, car doesnt "sound" off, but still up and down.

may be slipping the belt, boost always climbing but it does jump up 1 psi all the sudden like around 6k. Wouldntt think it would show up with abrupt air fuel changes like that. maybe abrupt rich spots.. but nothing on the tune changed and it developed this
Old 03-13-2006, 11:39 AM
  #2  
TECH Fanatic
iTrader: (5)
 
ABeasst's Avatar
 
Join Date: Oct 2003
Location: North Carolina
Posts: 1,417
Likes: 0
Received 0 Likes on 0 Posts

Default

if you're still running a MAF you might have killed the O2 sensors.




All times are GMT -5. The time now is 12:40 PM.