Error msgs ; p0135 o2 sensor and p0505 IAC failure

[andakanda]

Got 2 error messsages when using my local shops ODB-2 tool

My car runs like a champ, there's absolutely nothing wrong with it, there's no misfire or anything.

P0135 o2 sensor ( 1, 1 ) = could this be anything else than o2 sensor number 1 ? Should i just buy a new one and replace it, or could it be something else ?

Also i have a question related to that ; i have 2 o2 sensors installed but there's room for one more under the car, if i install a wideband o2 in the free slot , would the "Check Engine" come up again?


P0505 IAC system failure - should i just replace the IAC or start with something else?


Reason im asking is because i live in norway so a simple part like the IAC will cost me 50$ and shipping from the states is 140$ , so have to be as certain as possible before buying stuff

 

[GsxMan98]

if u installed a wideband the o2 cel would come back. and does ## car idle high or low because i have the iac cel and it idles alot higher in park

 

[andakanda]

absolutely nothing wrong with the idle either, idles just perfect

tried resetting the ECU , error msg / check engine comes back after 5 minutes

 

[rvaughn]

If you have three bungs for o2 sensors there is no reason you couldn't install a wideband, but you wont be able to correct the issue until you replace the faulty o2 sensor. Have you verified that the ISC is bad by 'ohming' it out?

If you have ECMLink (please fill out your mods list in your profile when you can) it is possible to simulate the front o2 signal with the wideband. You can also log your ISC to verify if it is working.

 

[andakanda]

i havent 'ohmed' ISC nor the o2 sensors , what are the optimal values on them ?