Do I need to replace fuel pump???
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Member
Joined: Dec 2001
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From: Walker LA
Do I need to replace fuel pump???
A couple of weeks ago I installed my home made ram air. The setup looks and works well. But after a couple of hard runs a got the service engine light. Took it to a friend and he tells me it is running lean on bank 1, then resets it for me. Another week goes by without any problems until last night and I was not even running it hard when I get the light again.
I am not a mechanic , but sounds like I might need bigger fuel pumps or injectors. Also, I know that the stock boost gauge is not always accurate, but the addition of the air and K@N air filter made it go from 8psig to of the chart.
Any input would be appreciated and sorry if there are mistakes. My truck is a 99L but I have only had it for about 3 months. Oh and by way, THIS TRUCK IS AWESOME!!!!
I am not a mechanic , but sounds like I might need bigger fuel pumps or injectors. Also, I know that the stock boost gauge is not always accurate, but the addition of the air and K@N air filter made it go from 8psig to of the chart.
Any input would be appreciated and sorry if there are mistakes. My truck is a 99L but I have only had it for about 3 months. Oh and by way, THIS TRUCK IS AWESOME!!!!
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Joined: Apr 2001
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From: Warner Robins, Ga, CSA
bow:
I don't think you need upgraded injs. or fuel pumps. The f/injs are supposed to be able to support about 500 flywheel HP and new pumps(you have two) aren't needed until way more boost is present and/or nitrous is used. I hope one of the more knowledgeable guys/tuners chimes in--but these comments are one I've seen posted in the past.
I think you have knocked something loose---did you check under the intake rubber boot--two 'pipes' and an electrical(I think) connection have to be attached tightly into the boot? Is your IAT pressedin in it's place?
Good luck,
Dan
I think you have knocked something loose---did you check under the intake rubber boot--two 'pipes' and an electrical(I think) connection have to be attached tightly into the boot? Is your IAT pressedin in it's place?
Good luck,
Dan
Senior Member
Joined: Nov 2001
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From: Burlington, Ma
Dan is right your stock fuel pumps can handle a lot more HP than these trucks come with. Check all the vacuum lines in under the intake hose. If you have a lean code it couls be a sensor too, a ram air system wouldn't make just one side run lean.
Where is Sal when we need him?
Where is Sal when we need him?
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Joined: Dec 2001
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From: Walker LA
Thanks guys,
I guess I was panicking a little and didn' look at the obvious. I looked at all the vacumm hoses and a couple where barely hanging on and one was off. I hooked them back up and disconnected the battery and the light is gone. Sorry for wasting you'lls time, but I greatlly appreciate it. Next time I will try and have a bigger problem!!!
I guess I was panicking a little and didn' look at the obvious. I looked at all the vacumm hoses and a couple where barely hanging on and one was off. I hooked them back up and disconnected the battery and the light is gone. Sorry for wasting you'lls time, but I greatlly appreciate it. Next time I will try and have a bigger problem!!!