running lean in both banks??
02-16-2008, 12:37 AM
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running lean in both banks?? getting the 0171 & 0174 codes, which is right bank lean & left bank lean. what could be causing them? car runs ok, idles ok, but occasionally will dip down to 400-500 rpm. drives ok, but when i push in the clutch( to come to a stop from 55-60 mph) the rpm will rise from 1000-1100 rpm(cruising speed) to 1600-1700 rpm & hover there until I get below 20 mph ( this might be normal, I've never noticed it B 4 though)
car is stock, has lid, filter, cat back, ngk plugs, msd wires. none of these mods are recent.
anybody have suggestions for what I should start looking at?
car is stock, has lid, filter, cat back, ngk plugs, msd wires. none of these mods are recent.
anybody have suggestions for what I should start looking at?
02-19-2008, 08:07 AM
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I would check your 02's make sure they are switching like they should. If you have not done any mods recently and these lights just came on it is most likely your 02's taking one for the team.
02-19-2008, 11:19 AM
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i swapped them out for a spare set i already had.they came off a friends car w/ 47k on it. they worked when they were on his car. drove it for 15 miles, the light went out & stayed out for 5 days. then it came back on
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02-20-2008, 09:09 PM
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Yeah I am having the exact same issues on my 2000 SS!! Word for word you have described what my car is doing. I have: NW TB, FAST intake, QTP LT's, QTP Y-pipe, granetelli MAF, SLP lid, and I have the diablo programmer and have moved the fuel curves all the way to the rich side (13%) and retarded the timing to 4% and my light still keeps coming on in both banks!!! Car is running really sluggish like its gettin to much fuel!!! What should I do?
, great suggestions, thank yall
02-21-2008, 06:35 AM
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Sounds like a leak in both instances. Go over all your plumbing.
To the guy with the 90/90...did you use the supplied rounded off bolts for the valley cover that FAST should have supplied? Did you use the GM torque spec/sequence for the intake bolts? I have found it to be "loose" for the 90/90 setups I have encountered.
To the guy with the 90/90...did you use the supplied rounded off bolts for the valley cover that FAST should have supplied? Did you use the GM torque spec/sequence for the intake bolts? I have found it to be "loose" for the 90/90 setups I have encountered.
02-21-2008, 07:07 AM
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Yeah I am having the exact same issues on my 2000 SS!! Word for word you have described what my car is doing. I have: NW TB, FAST intake, QTP LT's, QTP Y-pipe, granetelli MAF, SLP lid, and I have the diablo programmer and have moved the fuel curves all the way to the rich side (13%) and retarded the timing to 4% and my light still keeps coming on in both banks!!! Car is running really sluggish like its gettin to much fuel!!! What should I do?
Set all the fuel curves in the Predator back to stock after you put the stock maf back.
02-21-2008, 09:10 PM
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Sounds like a leak in both instances. Go over all your plumbing.
To the guy with the 90/90...did you use the supplied rounded off bolts for the valley cover that FAST should have supplied? Did you use the GM torque spec/sequence for the intake bolts? I have found it to be "loose" for the 90/90 setups I have encountered.
To the guy with the 90/90...did you use the supplied rounded off bolts for the valley cover that FAST should have supplied? Did you use the GM torque spec/sequence for the intake bolts? I have found it to be "loose" for the 90/90 setups I have encountered.
02-23-2008, 02:39 PM
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well, I replaced the pcv + the 2" hose. dont know if the hose was bad BEFORE I started pulling it off but it ripped & I replaced it too.
i drove it for 10-15 miles light went out, we'll see if it stays off this time..
oh, & BTW HAYNES service manual SUCK!!! it said the pcv was in the pass side valve cover. it even showed a pic. must be for 98-99. there was no adendum for 00-02 . its above the valve cover in line. took me 30 min to find that bish
LOL
thanks for everyones help!!!
i drove it for 10-15 miles light went out, we'll see if it stays off this time..
oh, & BTW HAYNES service manual SUCK!!! it said the pcv was in the pass side valve cover. it even showed a pic. must be for 98-99. there was no adendum for 00-02 . its above the valve cover in line. took me 30 min to find that bish
LOLthanks for everyones help!!!
02-23-2008, 04:46 PM
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Haynes manual is trash, search for the Helms manuals, there are three volumes of manuals for each year for the F-Bod, it has everything you need, be prepared to drop alot more cash than the $20 that buys the parts store manual.
