Dies under deceleration!?!

[apex_7]

Has anyone else had this problem? Any suggestions?

Also, My Turbo timer (apex'i) reads off 02 sensor voltage. Well, it's a/f ratio reading is 20.0 under normal driving and 14.6-7 under full boost. Why? If that were the real a/f ratio, wouldn't it have blown up already?

It idles all funny, but I'm replacing the plugs tomorrow. Maybe that'll fix that problem.

The car stays on for two or three seconds after I turn it off, so when the turbo timer shuts off, it stays running and just starts counting down again. Does anyone have a solution to this.

Please help!~Tony

[YamaOni]

Where does the BOV vent? Back into the system or to the atmosphere?I had that problem when I vented the BOV to the atmosphere

[YamaOni]

Has anyone else had this problem? Any suggestions?

Also, My Turbo timer (apex'i) reads off 02 sensor voltage. Well, it's a/f ratio reading is 20.0 under normal driving and 14.6-7 under full boost. Why? If that were the real a/f ratio, wouldn't it have blown up already?

~Tony

You are running lean in boost, As long as you are in negative boost the A/F does matter as much, My Gready A/F is 14.7 At idle and under Boost I am running a little too rich at 11.5. Your factory O2 sensor is keeping you at 14.7. thats a good burn but not that good for power.

[apex_7]

The BOV vents back into the system. So how do I change it to where I'm not running so lean?

[YamaOni]

SAFC The stock ECU wants to be at 14.7.

[FAST-DATSUN]

Check the fuel pressure and fuel volume, timing.....

[apex_7]

I don't know where to get the stock specs for that stuff. What should it be at?

[YamaOni]

At idle 2 kilo and under boost up to X and stop but not drop

[FAST-DATSUN]

Idle speed stock 650 rpm

timing 15 degrees at 650 rpm

fuel pressue at idle with vac 43 psi -+ 5 vac off rise should be 5-10 psi

factory spec's key on pressure 3.0 kg/cm2 idle 2.55 kg/cm2vac off 3.0 kg/cm2

Mack @ Mckinney Motorsports

[apex_7]

Thanks Mack!