Wide Open Throttle - Open Loop criteria
 

I would appreciate a little help.
I have an ALDLDroid and have recently been road testing it on my black 1990 ZR-1. On wide open throttle, the ALDLDroid info states that the car is still on closed loop, although the car performs / accelerates really strongly. I believe that the criteria for the car going from closed loop to open loop on WOT include: battery voltage, coolant temp, intake air temp, intake air temp, MAP and TPS. Does anyone have the criteria (in figures) that has to be met before going on open loop?
Thanks

Re: Wide Open Throttle - Open Loop criteria
 

You may be confused...when you start the car cold...it is in OPEN loop, as the temps warm up (this is not exact just from memory) the water temp is above 140 and oil above 100 it switched to CLOSED loop which the ECM takes over fuel management. Also, I believe the secondaries will not function with a stock PROM in open loop.

Re: Wide Open Throttle - Open Loop criteria
 

I don't think I'm confused - According to my reference books, it switches back to open loop on WOT.

Re: Wide Open Throttle - Open Loop criteria
 

No. Open loop is while the car is cold. Once it hits the requirements for closed loop it switches. While cruising around part throttle Learn mode is on. When it goes the WOT the car is in closed loop but Learn Mode is off. It uses set parameters and does not learn and change anything during WOT somewhat similar to open loop

Re: Wide Open Throttle - Open Loop criteria
 

Thanks for the clarification Jeff. I was getting my info from the Corvette Fuel Injection and Electronic Engine Management manual, which is obviously incorrect. Thanks again

Re: Wide Open Throttle - Open Loop criteria
 

Looking through a couple scans again I gave misinformation WOT does go into open loop. I was going off of memory from my last data log over the summer. When I looked at my display I had removed the Open/closed indicator part way through logging and swapped it with Learn mode on and off.

Sorry about that