What are the signs of a bad fuel pressure regulator?

Reply Subscribe

Thread Tools

Search this Thread

Apr 23, 2006 | 11:44 AM

solofthesouth

Thread Starter

Joined: Nov 2005

Posts: 135

Likes: 0

From: Enterprise, Al, USA

What are the signs of a bad fuel pressure regulator?

What happens to the car (symptoms) once the FPR goes bad?

Apr 23, 2006 | 12:04 PM

schardbody

Honda-Tech Member

Joined: Jan 2006

Posts: 4,338

Likes: 2

From: Ladson, sc, US

never seen one go bad, but i would say the pressure would either be very high or very low, depending on what went bad inside it.

Apr 23, 2006 | 12:33 PM

Tony_EM1

Honda-Tech Member

Joined: Apr 2005

Posts: 769

Likes: 0

From: covina, ca, usa

Re: What are the signs of a bad fuel pressure regulator? (solofthesouth)

bump

Apr 23, 2006 | 12:38 PM

Chiovnidca

Honda-Tech Member

Joined: Apr 2002

Posts: 7,574

Likes: 6

From: Cincinnati,, Oh

Re: What are the signs of a bad fuel pressure regulator? (code415)

If the diaphram is ruptured, it can cause a rich condition by letting fuel pass through the vacuum line to the manifold.

Apr 23, 2006 | 12:58 PM

solofthesouth

Thread Starter

Joined: Nov 2005

Posts: 135

Likes: 0

From: Enterprise, Al, USA

Re: What are the signs of a bad fuel pressure regulator? (solofthesouth)

would this cause harder starts in hotter weather?

Apr 23, 2006 | 01:03 PM

Chiovnidca

Honda-Tech Member

Joined: Apr 2002

Posts: 7,574

Likes: 6

From: Cincinnati,, Oh

Re: What are the signs of a bad fuel pressure regulator? (solofthesouth)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by solofthesouth »</TD></TR><TR><TD CLASS="quote">would this cause harder starts in hotter weather?</TD></TR></TABLE>
It could. When you shut the engine off the fuel pressure would bleed off through the regulator and puddle up in the manifold. It's easy to check: just pull off the vacuum line to see if there is any gas in it.

Apr 23, 2006 | 04:27 PM

solofthesouth

Thread Starter

Joined: Nov 2005

Posts: 135

Likes: 0

From: Enterprise, Al, USA

Re: What are the signs of a bad fuel pressure regulator? (Chiovnidca)

so if it has fuel or fuel oder its good? or bad?

Trending Topics

ITR 01-0431 Modification Thread

134

12.3k
08-12 Accord P0339 Starter heat shield?

4

496
Civic ej9 rubbing issues

6

303
2002 Accord F23A4, low power on hills, no CEL

3

254
Hello, I'm Crumple, I am trying to rebuild my 83 civic.

2

201

Apr 23, 2006 | 07:22 PM

solofthesouth

Thread Starter

Joined: Nov 2005

Posts: 135

Likes: 0

From: Enterprise, Al, USA

Re: What are the signs of a bad fuel pressure regulator? (solofthesouth)

bump

Apr 24, 2006 | 03:16 AM

Chiovnidca

Honda-Tech Member

Joined: Apr 2002

Posts: 7,574

Likes: 6

From: Cincinnati,, Oh

Re: What are the signs of a bad fuel pressure regulator? (solofthesouth)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by solofthesouth »</TD></TR><TR><TD CLASS="quote">bump</TD></TR></TABLE>
The vacuum line shouldn't have any fuel in it.