Second thought for your running rich problem: They make adapters to install the short injectors into the 3400 fuel rail. I have a full set and the wiring adapters. Not doing me any good. I'll give them to you if you want. I ended up building a new harness. Need to change the fuel press. reg. to 43.5 PSI. The one from the 99 Montana Van will fit.
Other options:
Brackets to lower the 3400 fuel rail:
https://www.milzymotorsports.com/310...ev1-injectors/
Injector height adapters allows other types of injectors to be used:
https://fuelinjectorconnection.com/c...pters?coback=2
2 different types of wiring adapters:
https://www.highflowfuel.com/c-12083...-pigtails.html
https://www.highflowfuel.com/c-12083...-pigtails.html
I see that you are using TunerPro. For the P66_V6.adx it doesn't have a direct Injector Flow Rate constant. It uses Base Pulse Constant instead 2294 (18lb), 1721 (24lb), 1475 (28lb). It's inversely proportional to the actual flow. Not a linear relationship either. I just know that putting the flow rate into TunerCat causes the TunerPro number to change.
I also had to lean out the Crank and Choke AFR tables to get a good start. Mine was running in the 6-7 range, makes your eyes burn. Probably has something to do with changing from iron heads to aluminum.
My latest bin
95 Camaro 3.4L w/ 2003 Grand AM aluminum heads, intake. 18 lb injectors, Short tube headers. Street/Strip cam. 2.5" exh.
Camaro_34_H18_Rev4I.bin
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