Tuning with an air fuel ratio gauge, I highly recommend getting one Options

[914Mels]

Hey All,
I've had my new air fuel ratio gauge installed for a couple weeks now. If you don't have one yet, I would consider dropping $200 for the set up. I knew my stock F.I. could be improved on so this is the start of my experiment. The engine is a 1.7 with 1.8 P&C's and a close to stock hydraulic cam. With all the basics checked, fuel pressure, resistance readings, MAP sensor condition, tune-up etc, I'm ready to start.
Right off the bat, with all the engine sensors hooked up and working,the gauge showed a real lean condition across the board. The car ran OK but jerked and bucked under load. A quick disconnect of the temp sender 1 for the air temp, brought the readings to a more favorable range. Where it was running in the 18.0 to 16.0 range, now it's around 12.5 to 15.5. The difference in power is very noticeable and the bucking is gone. From here, I'm going to start playing with the sensor readings and see what changes work out. Mike