Car is missing uphill and idles rough. Code p0102 and p0135..advice needed
Car is missing uphill and idles rough. Code p0102 and p0135..advice needed So my car started to miss going uphill with the cruise on. Then it started to idle rough every now and then. The guy behind me said when I would get on it, lots of black smoke was coming out of my pipes and when it would miss going up hill, it'd do the same. He says I'm running rich and he hooked up his scanner and i got the p0102 code and p0135 which if i remember right is for maf and o2 sensors. I have no cats BTW. So we unhooked what we thought was the MAF sensor and it seems to be running better and no rough idle. What do you guys think it could be? Should I try cleaning the MAF. I don't even know where this is cuz I'm a total newb. Where is it and is there a write up somewhere that can help me out....thx guys?
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Joined: Dec 2001
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From: Jacksonville, FL
First thing I'd check is the ENG SEN fuse and see if it's blown, the H02S and MAF are on the same circuit. If it's blown and you have headers look for a burnt or arcing wire against a header.
Originally Posted by 2001NBMZ28
First thing I'd check is the ENG SEN fuse and see if it's blown, the H02S and MAF are on the same circuit. If it's blown and you have headers look for a burnt or arcing wire against a header.
, I found this on a search earlier today and forgot to check, checking.......fuse is blown Last edited by allbaugh_04; Aug 27, 2007 at 05:10 PM.
TECH Senior Member
Joined: Dec 2001
Posts: 5,399
Likes: 3
From: Jacksonville, FL
Visit gearchatter.com and look up the codes/diagnostics for your year. You can get an owners manual at http://shbox.com/pdf/manuals.html
Originally Posted by 2001NBMZ28
First thing I'd check is the ENG SEN fuse and see if it's blown, the H02S and MAF are on the same circuit. If it's blown and you have headers look for a burnt or arcing wire against a header.
ok wierd im having the exact same problems here, i got the 102 code, and a 155 code, the eng sen fuse was blown so i replaced it then started car about 30sec later, ses light on with the 102 code, so i looked under car, and sure enough my bank 1 o2 harness was like hangin down and restin on the header, sooo now what since it was sittin on it, do i need a whole new harness now or what, also how come im not gettin a code for bank 1, and am gettin one for bank 2....i havent gotten under to look at bank 2 sooo...but what to do now..with that one harness???
Originally Posted by leoni62486
ok wierd im having the exact same problems here, i got the 102 code, and a 155 code, the eng sen fuse was blown so i replaced it then started car about 30sec later, ses light on with the 102 code, so i looked under car, and sure enough my bank 1 o2 harness was like hangin down and restin on the header, sooo now what since it was sittin on it, do i need a whole new harness now or what, also how come im not gettin a code for bank 1, and am gettin one for bank 2....i havent gotten under to look at bank 2 sooo...but what to do now..with that one harness???
i can just barely see my o2's so i don't know if they are touching or not without renting a jack or something.
i know somewhere out there knows what to do, they just haven't noticed this thread yet.
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TECH Senior Member
Joined: Dec 2001
Posts: 5,399
Likes: 3
From: Jacksonville, FL
Timmy I thought you posted earlier that the fuse wasn't blown and had 102 and 135? Both you guys need to get under the car and check both bank 02 wiring harnesses. Depending on how bad their damaged/melted try a repair first.
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Originally Posted by 2001NBMZ28
Timmy I thought you posted earlier that the fuse wasn't blown and had 102 and 135? Both you guys need to get under the car and check both bank 02 wiring harnesses. Depending on how bad their damaged/melted try a repair first.
the car is still new to me and i used the link you gave me for the owner's manual and it told me that we had three boxes. honestly i didn't even notice those boxes cuz i haven't had to be under the hood yet..... 
i'll be checking the o2 wires when i go see my parents this weekend cuz my dad has a jack i could use...but i need to know what i have to do when i find the o2 sensor has shorted out on either the headers or whatever else it touches....
Originally Posted by 2001NBMZ28
Timmy I thought you posted earlier that the fuse wasn't blown and had 102 and 135? Both you guys need to get under the car and check both bank 02 wiring harnesses. Depending on how bad their damaged/melted try a repair first.
I DID FIXED MINE!!! haha well i put my car on a lift today, checked my bank 1 side, sure as sh*t it was rubbin on it, melted two of the wires right by the connector, so i just cut them and re crimped them and rerouted now so they are not touchin anywhere now...cleared the faults so far so good..... 
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Joined: Dec 2001
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From: Jacksonville, FL
Cool, hopefully Timmy's issue is the same. I wouldn't unplug the MAF if you don't have to drive that far, probably won't make a difference - driving with the SES on isn't necessarily bad as long as it's not flashing on and off.
Originally Posted by leoni62486
I DID FIXED MINE!!! haha well i put my car on a lift today, checked my bank 1 side, sure as sh*t it was rubbin on it, melted two of the wires right by the connector, so i just cut them and re crimped them and rerouted now so they are not touchin anywhere now...cleared the faults so far so good.....
Originally Posted by allbaugh_04
way to go man, i'm sure that's what's wrong with mine. hopefully i can get it up in the air when i go home this weekend and do what you did. bank 1 is driver side right?
yes bank 1 is the drivers side.....
Originally Posted by 2001NBMZ28
Cool, hopefully Timmy's issue is the same. I wouldn't unplug the MAF if you don't have to drive that far, probably won't make a difference - driving with the SES on isn't necessarily bad as long as it's not flashing on and off.
Well I couldn't take it anymore and couldn't wait till this weekend. I got the car on a lift at the auto hobby shop on base. I found a wire was touching the transmission. I guess the tranny get's pretty hot and melted the insulation and was shorting out on my transmission. So since it wasn't broken I just put a crap load of electrical tape around it, wrapped the three or so wires with some plastic housing and left some slack on the o2 sensor. I replaced the blown fuse and holy **** it worked. No more hard shifts. My tranny use to shift very hard into every gear. Now that's fixed. Amazing what something that small can impact. I don't know if I'm running rich yet or if it'll miss uphill. I'll find that out later when I take it out racing this weekend. I'm pretty sure my problems are over. Thx for all the help!!!!!!!
