2003 Error Code P1035

[jsword47]

I'm getting error code p1035. What does that mean? And how to fix?

 

[biddle]

Probably a Bad Upstream O2 sensor.

Ford Thunderbird Upstream Downstream O2 sensors P1035

Purchase on eBay here- Upstream & Downstream O2 sensors- https://ebay.us/HIfdvbPurchase on Amazon here- Upstream & Downstream O2 sensors- https://amzn.to/3Pb3JsW

forums.fordthunderbirdforum.com

 

[Tomstoy]

I had it come up on my 04 and after getting tired of chasing codes, I sprung and replaced all four O2 Sensors. Never had the problem again. I also starting getting codes after letting my 05 idle for about 30 to 45 minutes with ambient temp. at about 80 degrees around the end on September. Reset the codes and haven't had it come back, yet.

I'm getting error code p1035. What does that mean? And how to fix?

 

[T.Riggs]

I'm getting error code p1035. What does that mean? And how to fix?

I get a code that pops up every 1,000 miles or so saying I have a vacuum leak. Tried to find it including a smoke detector to no availe. My mechanic said it won’t cause a problem but will be a pain in the butt. I bought a cheap code reader and reset it when it comes on.

 

[tbird2003]

I had it come up on my 04 and after getting tired of chasing codes, I sprung and replaced all four O2 Sensors. Never had the problem again. I also starting getting codes after letting my 05 idle for about 30 to 45 minutes with ambient temp. at about 80 degrees around the end on September. Reset the codes and haven't had it come back, yet.

Where are the O2 sensors? Are they easy to replace?

 

[biddle]

Where are the O2 sensors? Are they easy to replace?

You should snag a service manual off eBay for this and future issues. They are cheap.