Bosch o2 fail??
05-22-2010, 11:43 AM
#1
Bosch o2 fail?? i went to the stealership and bought/ordered 2 ac Delco o2's and got em same day....$49 ea....anyhow i'm posting some pic's in the forum on how the Bosch's looked when i removed them.. they were only a few months old i put them in when i did llp's, progressively car started running shittier. PS Bosch is black and sooted, DS is not nearly as sooted...i haven't tuned for the llp's,no cats,& no egr yet. i want some input/opinions on why car is running so rich PS.. take a look PS is on right in pic, could the stock tune really be that far off or do would an exaust leak have caused this or maybe a injector hanging open? also i keep getting a code 26 .i've switched out the sensor checked the hoses and wiring under the hood with no luck...thanks for the input !
Last edited by defaultexistence; 05-22-2010 at 12:09 PM.
05-22-2010, 12:17 PM
#3
i dont have an AFRG, i replaced slip on joints with turbo flanges and gaskets to ensure no leaks @ connections,..(may,i stress,may) be a minor manifold leak,i say that because i do hear a tick like sound more so on the PS than the DS i have tightened the bolts the best they can be. two of the six bolts you cannot put a wrench on because of improper bolt/header pipe clearence and those are allen keyed for tightening.
P.S. i changed plugs and #6 was black but all the others were not . just throw'n that out there
P.S. i changed plugs and #6 was black but all the others were not . just throw'n that out there
05-22-2010, 02:15 PM
#4
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Honestly, thats just how bosch runs, at least in 93. Made mine run pig rich too, and they were as black as that.
I put some ac delco's in and ive been fine since then. Bosch also gave me crappy gas mileage, I couldnt get above 170miles per tank (hwy/street) to save my life.
Oh and mine were only a few months old before I yanked them out, actually one had failed and threw a SES light which the code was for bad o2 on the right bank.
I put some ac delco's in and ive been fine since then. Bosch also gave me crappy gas mileage, I couldnt get above 170miles per tank (hwy/street) to save my life.
Oh and mine were only a few months old before I yanked them out, actually one had failed and threw a SES light which the code was for bad o2 on the right bank.
05-24-2010, 09:27 PM
#11
Honestly, thats just how bosch runs, at least in 93. Made mine run pig rich too, and they were as black as that.
I put some ac delco's in and ive been fine since then. Bosch also gave me crappy gas mileage, I couldnt get above 170miles per tank (hwy/street) to save my life.
Oh and mine were only a few months old before I yanked them out, actually one had failed and threw a SES light which the code was for bad o2 on the right bank.
I put some ac delco's in and ive been fine since then. Bosch also gave me crappy gas mileage, I couldnt get above 170miles per tank (hwy/street) to save my life.
Oh and mine were only a few months old before I yanked them out, actually one had failed and threw a SES light which the code was for bad o2 on the right bank.
Exactly the same results for me........interesting.....how do they get away with this shitty of a result from their product...............QC guy needs fired
