Fuel System Failing?
Thread Starter
Teching In
Joined: Apr 2006
Posts: 29
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From: St. Louis, MO
Fuel System Failing? I have a 98 Z28 with airbox, ram air, headers, LM, no cats, ... the usuall. The car has 99K on it so it makes sense that the fuel system would be dying. When I drive it sometimes it kinda boggs out some so I just rev it and its back to normal. The car idles good except for about every 15 seconds it starts to drop down to about 6-700rpm and then revs itself back up again. Took it to autozone to get my check engine lights looked at again and BANK 1 and 2 are both showing lean readings. I have been planning on doing new injectors and pump so I figure now would be a good time. My future plans for right now just include injectors, pump, and dyno tune. What size injectors and brand should I look for if I'm shooting for 350RWHP? And what brand fuel pump should I go with? I just helped my friend put a walbro 255L in his WRX which required some light fabrication but nothing major. How hard is it to put one of those in a 98 camaro? I know its a lot of questions but just help me out where you can. Thanks.
Last edited by orange_eskimo; Jun 1, 2006 at 01:35 PM.
On The Tree
Joined: Oct 2005
Posts: 124
Likes: 0
From: Santa Maria/Bakersfield Ca.
Try putting new injectors in first and then see if that was the problem. My car had bad O rings and I saw the car idle up and down between 300-700RPMs.
And when your fuel pump starts to wear out...the SES will come on and let you know.
And when your fuel pump starts to wear out...the SES will come on and let you know.
whats up man i gotta 98 ls1 m6 and just did the in tank walbro system (255 lph) as far as difficulty goes i give it a 7 out of 10. if you do some searching on it, you can find out how to put in the pump without dropping the tank. this is how i did it and trust me, its much easier if you will give it the chance. as far as the stock pump failing, it can depend on mileage, number of times youve ran out of fuel and the amount of rwhp your pushing. stock pumps will throw out about 150 lph at around 58 psi and are good for around 300-350 rwhp.
Originally Posted by connexion2005
whats up man i gotta 98 ls1 m6 and just did the in tank walbro system (255 lph) as far as difficulty goes i give it a 7 out of 10. if you do some searching on it, you can find out how to put in the pump without dropping the tank. this is how i did it and trust me, its much easier if you will give it the chance. as far as the stock pump failing, it can depend on mileage, number of times youve ran out of fuel and the amount of rwhp your pushing. stock pumps will throw out about 150 lph at around 58 psi and are good for around 300-350 rwhp.
I'd rather not have to pull everything behind the front wheels to change out the pump.
And no, I never got an SES when mine went tu.
