fuel pressure drop at full boost

1370 Views 2 Replies 1 Participant Last post by Zerosoul, Feb 18, 2002

Discussion Starter · Feb 17, 2002

I have monitored fuel pressure drop at high boost higher gear pull. I did the leak down test and all vacuums are leak-free now.

after reading RX-7 Faq on fuel, (yeh they are more sensitive on fuel issue than supras) I discover a drop in pressure at full boost and heavy engine load usually means the fuel pump is maxed out.

what do you guys think?

Save

1 - 3 of 3 Posts

sidwin

· #2 · Feb 18, 2002

easiest thing to test is your FP regulator. Do the 5 in shutoff test and check what your fp is. Then check idle fp, with key turned to on, and with the FP hose disconnected. how many miles do u have on your car? Pumps are pretty dang reliable. Sounds like FP dampener bypass

Sid

Save

Discussion Starter · #3 · Feb 18, 2002

FR damper bypasses.
I have HKs FPR. holds 30psi for an hour after engine turns off.
this is a 40,000miles 98 turbo pump.

Save

1 - 3 of 3 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.

Top Contributors this Month