HSR Fuel Problem?
Thread Starter
Pro
Joined: Nov 2009
Posts: 583
Likes: 0
From: Maple Grove Minnesota
HSR Fuel Problem?
I haven’t driven the car much sense I put the HSR on and now realize there’s a problem. If I start out slow and gradually give it gas it runs great. I was on the freeway for the first time the other day and going 65 mph and I put the hammer down and the engine started to cough and gained no rpm’s? Once again if I ease into the gas it runs just fine even at high speeds.
With an HSR do I need a different fuel pump?
Is this a lack of fuel getting too much air?
I think I have another knock sensor code which would make #3 if this one is bad.
With an HSR do I need a different fuel pump?
Is this a lack of fuel getting too much air?
I think I have another knock sensor code which would make #3 if this one is bad.
Race Director
Joined: Apr 2003
Posts: 17,698
Likes: 1,667
From: moraga ca
Here is where a wideband recording would really help. With a wideband, when you punch it, the motor appears to be getting too much or too little gas. One run with a wideband will answer your question.
Thread Starter
Pro
Joined: Nov 2009
Posts: 583
Likes: 0
From: Maple Grove Minnesota
Okay time for an education. *****, what is a wideband?
Agent I do have a FPG on the fuel rail. Just went out and fired it up and at idle it’s only running about 33 and goes down to 31 when revved. Looks like I better start with a fuel pump. Is one brand better than another?
Agent I do have a FPG on the fuel rail. Just went out and fired it up and at idle it’s only running about 33 and goes down to 31 when revved. Looks like I better start with a fuel pump. Is one brand better than another?
Race Director
Joined: Apr 2003
Posts: 17,698
Likes: 1,667
From: moraga ca
A wideband is an oxygen sensor that can read greater parameters than the stock narrow band which is good only aroung 14.7. A wideband will give you an accurate reading if your air/fuel ratio is at 10 or 16 while a narrow band won't. Couple that with a system that allows recording, it makes tuning or troubleshooting easy.
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Le Mans Master
Joined: Jul 2007
Posts: 5,356
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From: No HOA, New Hampshire
Cruise-In X Veteran
St. Jude Donor '09
Okay time for an education. *****, what is a wideband?
Agent I do have a FPG on the fuel rail. Just went out and fired it up and at idle it’s only running about 33 and goes down to 31 when revved. Looks like I better start with a fuel pump. Is one brand better than another?
Agent I do have a FPG on the fuel rail. Just went out and fired it up and at idle it’s only running about 33 and goes down to 31 when revved. Looks like I better start with a fuel pump. Is one brand better than another?
(Sorry for butting in)
Pro
Joined: Mar 2000
Posts: 658
Likes: 7
From: Perth Amboy New Jersey
Okay time for an education. *****, what is a wideband?
Agent I do have a FPG on the fuel rail. Just went out and fired it up and at idle it’s only running about 33 and goes down to 31 when revved. Looks like I better start with a fuel pump. Is one brand better than another?
Agent I do have a FPG on the fuel rail. Just went out and fired it up and at idle it’s only running about 33 and goes down to 31 when revved. Looks like I better start with a fuel pump. Is one brand better than another?
Le Mans Master
Joined: Aug 2000
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From: Australia
http://www.kirbanperformance.com/pro...R+%236547.html