Takes forever to start and rough idle

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Jul 26, 2010 | 09:01 PM

#11

BAGnDRAG-K5

Beginning Member

Joined: Jul 2010

Posts: 35

From: DFW, TX

OK first what was your fuel pressure?

The regulator will be located either on the fuel rail or just in front of it between the in line and the fuel rail.
The fuel will have to pass through this first.

Jul 26, 2010 | 09:06 PM

#12

94BlazerPA

Junior Member

Joined: May 2010

Posts: 289

From: Philadelphia, PA

the fuel pressure regulator is attached to the CPI unit located INSIDE the plenum.

Jul 26, 2010 | 09:16 PM

#13

BAGnDRAG-K5

Beginning Member

Joined: Jul 2010

Posts: 35

From: DFW, TX

Quote:

Originally Posted by 94BlazerPA

the fuel pressure regulator is attached to the CPI unit located INSIDE the plenum.

Yea what he said.

LOL, my bad!

Jul 26, 2010 | 09:39 PM

#14

Guy

Thread Starter

Beginning Member

Joined: Jun 2010

Posts: 15

From: Arkansas

Where is the fuel pressure regulator at???

Jul 26, 2010 | 09:41 PM

#15

swartlkk

Administrator

Joined: May 2005

Posts: 41,333

From: Waterloo, NY

Quote:

Originally Posted by Guy

Where is the fuel pressure regulator at???

Answered just two posts above...

Quote:

Originally Posted by 94BlazerPA

the fuel pressure regulator is attached to the CPI unit located INSIDE the plenum.

Jul 26, 2010 | 09:43 PM

#16

Guy

Thread Starter

Beginning Member

Joined: Jun 2010

Posts: 15

From: Arkansas

Uhmm, ok. Never heard of the term plenum.
So what and where is the plenum?

Jul 26, 2010 | 09:46 PM

#17

swartlkk

Administrator

Joined: May 2005

Posts: 41,333

From: Waterloo, NY

Plenum is synonymous with intake, but may be used in conjunction with intake as in 'intake plenum'.

Not to be smart, but this and many more questions can be answered by using the search function.

Jul 28, 2010 | 09:33 PM

#18

Guy

Thread Starter

Beginning Member

Joined: Jun 2010

Posts: 15

From: Arkansas

Ok, I took the plenum off today. Cleaned all the carbon out and replace the regulator.
Did absolutely nothing for me! Fuel pressure is about 59psi.
Could it be the throttle positioning sensor???