Thanks, fuse 6 looks to be good

 

So, what did step on of the testing show?

 

step one was good, im waiting for a header to come in the mail to see if it was my manifold causing the problem

 

Well, while waiting for that....willing for part two.....and we are one page two and I can't remember what year/engine we are working on....this is got the 6th gen 4cyl.

 

sorry for the delay - the header came in and i installed that along with a new upstream o2 sensor.. erased the p0135 with scanner and instantly come back on again.. also while installing the header i noticed the engine code on the block f23a7 so it seems it is not ulev but has a ulev valve cover.. i checked the resistance of the sensor and it went to 19ohms and the others test showed 12 volts dc which all seems to be to spec? any further help would be appreciated!

 

See this link:

Part 1 -P0135 Test. O2 Sensor Heater Test. Honda Accord (1994-2002)

 

i did this and everything came back normal

 

The link states:

"If the Diagnostic Trouble Code does come back... there are several possible scenarios:

• Intermittent short in the O2 Sensor's wiring (that only presents itself when the vehicle is in motion).
• A BAD O2 Sensor (even tho' it tested OK in this test section).
• A BAD Fuel Injection Computer (this is rare, but it does happen).

Although it's beyond the scope of this tutorial to test for tha above conditions... my suggestion to you, before replacing the Fuel Injection Computer, is to try another O2 Sensor first and go from there."

 

thank you for the input i will keep trying to solve this problem

 

if i took this to a shop to have them try to get rid of the cel what would you guys thinks it would cost.. should i go to honda or somewhere else?