dboyle23
10+ Year Contributor
- 297
- 14
- Jun 10, 2010
-
Chicago,
Illinois
So I installed an aeromotive afpr, but how do I set the pressure?
The nut on top doesn't change anything.
The nut on top doesn't change anything.
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Do you have a bigger fuel pump than stock as your regulator may have been getting overrun? What tuning symptoms are you seeing?
I am wondering what you mean by this? I am planning to buy a car that is running lean and the owner has put a walbro 190 in with 850cc's and hasnt had the car tuned using the DSM link (the car does have dsmlink) Would the bigger pump make it run lean?
Nope 41 is about right. 20mmhg in vacuum is slightly less than a half a psi.
I've been following this thread & something's a miss. Your measurement numbers seem sort of close but a little extreme to me. I work in a quality relate field. When we see things similar to your situation the first thing we will do is check the measuring equipment. Are the observed measurements accurate & can they be relied on? What are you using to measure your vacuum/pressure values? Is it of suffiencent quality for what is being checked and for decision making? Check you measuring equipment then double check your mesurements.
An easier way since you have DSMlink is just leave the engine off, with the key in the "On" position (so that DSMlink can connect) and select the "Activate Fuel Pump" under the "Misc tab". This way you can leave the vacuum line connected since the engine isn't on and isn't pulling any vacuum and the gauge will be easier to read since there are no engine vibrations. Loosen the retaining nut like Brian mentioned and turn the adjustment rod with an allen wrench to raise or lower the fuel pressure. All 2g cars are set to 43 psi from the factory.
For others searching in the future:
1G MT = 37psi
1G A/T = 43psi
1G NT = 48psi
2G ALL = 43psi
Buddy of mine was looking at this thread and I have to correct this, car has to be up to temp, and running to set a proper base fuel pressure.