Quote:
Originally Posted by GregWeld
Brian --
Good discussion!
So.... if the A/F ratio is set for 14:1 and the actual, and set, match - what possible difference does it make? I.E., you set the idle A/F and the ECU with the help of the O2 sensor makes sure that's where you're at.... I would ASSume then that the PW is properly set/adequate etc for the situation?
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PW proper... no.... works yes... here is why. Without the regulator hooked up and lowering the fuel pressure to maintain the same flow, the ecu has to trim out the extra fuel and really lower the numbers to get there. It sometimes can do this and sometimes cannot. There are several guys complaining about having engines that run too rich and the EZ will not tune it out. Most have found this when there was no vac line connected. If you read the CPG Nation board.. this is one of the basic settings people mess up.
I had a shop in your neck of the woods calling and calling me, since I was up there... had a EZ... one of Bobs... 10 different people whith o scopes looked at it and no one could get it to run... I went and reset the wizard.. went through the screens... hooked up the vac line and wow it runs without any black smoke. They were also told there was no need to hook up the line.. not true.
You understand what the regulator is actually doing? Correct?
The rear mounted regulators... yeah.. another problem there.. I had two burned up offroad cars because of that last year.