06-26-2007, 02:36 PM
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Registered Member
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Re: Surging...help!
Just had it checked and it is throwing no codes. He said the O2 sensors were not reacting as fast as they should (lazy). and we were noticing that the Downey headers have the O2 mount bung off to the side and not directly in the flow. But this problem was not evident directly after the header upgrade. He thought fuel pressure too, cause flow was registering good when it was started. He recomended tapping the fuel rail to get a pressure read.
Is this how it's done? What is the correct procedure? Little leary of tapping my fuel rail.
The fuel pump makes total sense. Cause it's only when it needs lots of fuel. I replaced my sending unit and didn't spring for the pump like a jacka!@. There was lots of magnetic particles, and I tried to clean it up as well as possible. BTW, it was doing this before messing with the sending unit. And the tank strap bolt got stripped and I had to re-tap new ones due to tank damage. So I am not looking forward to dropping the tank again.
Don't the pumps just go when they are bad? Or can it be a slow degrade? What about a Walbro?
And next time I am up in Huntington Beach I will bring my ECU and have Jet flash it back to stock. I don't have much faith in them.
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08' Tundra DC, SB, 5.7, 4x4, Sky Silver
3" Toytec lift in front, Diff drop, Ride Rite airbags. 305/65/18 BFG A/T's on 18x9 Ultra Magnus, Prodigy in tow/haul button cubby.
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Girlfriend got the ol' girl.... (keep her in the fam)
 2000 Tundra, AC 4x4 V8, Donahoe LT coils, TC upper arms, TC diff drop spacers, TC steering bushings, sway bar bushings, custom Deaver 11 leaf spring pack, Ride Rite Airbags, Fox shocks on rear, Viar compressor & 1 Gal. tank on frame rail with quick connect, ARB Air Locker, True Flow drop in filter, [/b]Jetchip (bought another ECU, so stock now), [/color][/b]Downey ceramic headers, Custom Y pipe, 40 series Flowmaster, Centric Drilled and Slotted Rotors & Carbon Kevlar Pads, AR 16x8 Teflon Mojave's, 285/75/16 BFG A/T's, Snugtop Extra Vision top, Yakima racks and Space Booster, Brake Controller, PIAA Super Extreme bulbs, Clear Corners, Light bar w/ 2 Hella Rallye 4000 Euro Beam, GMC sierra fog lights in stock location, Optima battery, Sony mp3, powered Alpine speakers, 2-10's in a MTX Thunderform
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