Honda D Series Forum banner

1 - 15 of 15 Posts

·
Registered
Joined
·
31 Posts
Discussion Starter #1
like the title says i already replaced it with a brand new o2 sensor, ive cleared the ecu, but it comes on intermitently and then will break up and chug real bad under 3k. it is basically a d15a6 and it had no issues like this for the 10 months or so since i replaced the o2, but it was d15b2. now after mpfi and a6 cam i have o2 code with a new sensor. please help!
 

·
Registered
Joined
·
31 Posts
Discussion Starter #2
in theory is it possible to have the timing off far enough that the car still runs half decent but would cause a lean/rich condition? and that is causing my code 1?
 

·
racist-bigot-sexist-homophob
Joined
·
11,892 Posts
Perhaps the o2 sensor you have is bad. Try another one and rule that possibility out.
 

·
Registered
Joined
·
31 Posts
Discussion Starter #6
no it is not chipped, it couldnt be running too rich cause its only .1 liters smaller, an the o2 in it is brand new. the other one i have was less than a yr old
 

·
Registered
Joined
·
69 Posts
is there a rear o2 sensor in the cat that could becausing this to happen cause the exact same thing happened to me and i changed the rear one after replacing the front one 4 times
 

·
Registered
Joined
·
31 Posts
Discussion Starter #11
ive already replaced it, still throws intermittenly, its not a code 10, i replaced the iat with another known good one i had and same deal. i re-ran the wire straight to the ecu still code 1. i dunno for sure but i think maybe the ecu is bad
 

·
Registered
Joined
·
9 Posts
Try a known good MAP sensor I had this same problem in the past on an OBD0 D16A6 in an SI hatch. Code 1, I kept throwing new O2 sensors at the car NAPA ECHLIN brand and they kept going bad, only to find out that it was the MAP sensor. I tried it on a hunch from another car and it cured the problem. Swapped MAP sensor out and no problems after that. In fact funny thing is I swapped my old original Honda NTK O2 sensor back in after I swapped in a new Honda MAP sensor, $250 or so(damn I wish I knew about Honda forums and where to get parts for cheap then) took back the Echlin brand 02 sensors for refund on third try, it did keep cracking the elements, think the MAP sensor being out of spec did them in.
 

·
Registered
Joined
·
721 Posts
replace PCV and see what happens, my last civic was doing the same thing, ran like ass around 3K and then it would rev out just fine, and then I fucked an altenator and had almost the exact same issue just more noise lol. Both times I was throwing the O2 code.
 

·
Registered
Joined
·
31 Posts
Discussion Starter #15
yes, 1 quick flash. it just doesnt make sense that before mpfi it threw no codes, now after mpfi i have a code 1, something i never even touched. the map sensor was good before, should be now. im getting pretty frustrated
 
1 - 15 of 15 Posts
Top