I recently installed a set of 84 lb/hr Delphi injectors in my '95 LT1 with LJ's Accelleronics Impedence Converter.

With an 86 lb/hr injector constant, the Lterms are 126 - 131. The car idles and drives fine, and the A/F ratio at WOT looks good.

However, when cranking the car (cold or hot), it doesn't start very well. If you hold the throttle open, though, it starts up fine.

I have set the injector offsets to zero at 8 - 10 volts to lean it on start up, which has helped. However, it still doesn't start quickly.

I've seen in the tuned port and '93 LT1's a table for Crank Fuel Addition. However, that table isn't in TunerCAT. I think that leaning this table would make my car start right.

Does anyone know how to access that table?

Any other suggestions?

Thanks,
Mike

 

I had this same problem on my previous car (97 SS) with LJs box and 72# Siemens.

I never did get it fixed and the person that bought the car removed those items and changed back to high imp injectors and the problem was gone.

Maybe LJ has heard of this before or has some thoughts... He is on this board so maybe shoot him a PM or email...

 

LJ's guidance was to modify the injector offsets at cranking voltage (8 - 9 volts). As I stated, this helped, but the offsets are now zero and the problem still exists.

Mike