Hey all,
I've got a AFPR that kinda looks like this
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7978581363&category=33553
I've noticed that when I step on the throttle, the fuel pressure decreases. This is strange since I have a 255 fuel pump and my guage seems to be working well. I would expect the pressure to increase when vacuum decreases.
It that normal? Could the diaphram have been reversed inside the regulator?
I wanted to make sure the problem was my AFPR rather than a plugged filter or a bad fuel pump. I tested my AFPR by turning on the ignition without the engine running. The fuel pump turned on like normal and the gauge showed about 35 psi of fuel pressure. I applied vacuum (by sucking with my mouth, it tasted like fuel fumes, not doing that again) and boost by using a pump. Both times the fuel pressure decreased by 2-5 psi then returned to the original position.
Thanks
Tom
I've got a AFPR that kinda looks like this
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7978581363&category=33553
I've noticed that when I step on the throttle, the fuel pressure decreases. This is strange since I have a 255 fuel pump and my guage seems to be working well. I would expect the pressure to increase when vacuum decreases.
It that normal? Could the diaphram have been reversed inside the regulator?
I wanted to make sure the problem was my AFPR rather than a plugged filter or a bad fuel pump. I tested my AFPR by turning on the ignition without the engine running. The fuel pump turned on like normal and the gauge showed about 35 psi of fuel pressure. I applied vacuum (by sucking with my mouth, it tasted like fuel fumes, not doing that again) and boost by using a pump. Both times the fuel pressure decreased by 2-5 psi then returned to the original position.
Thanks
Tom