ok...pulled codes on car finnally.....

[MI95Cobra]

ok....all my trouble comes from my o2 sensors....guess cleaning them wasn't enough.......also what is code 543 exactly???? it says fuel pump secondary circuit open, pcm to battery....what does that mean????

 

[HISSIN50]

How were the O2's cleaned?

Have you tripped the inertia switch lately? The code can mean that the fuel pump lost power for a split second when it should not have.

Good luck.

 

[MI95Cobra]

the switch is in the trunk right????

 

[Bosko5.0]

yes in the trunk driver side.

 

[MI95Cobra]

ok....got the o2 sensors and decided to go ahead and get plugs also while i was at it....

 

[SeventyMach1]

Is your code 543 a KOEO code?

 

[The Green GT]

I didnt know you could clean the O2 sensors. I thought they just went out.

 

[MI95Cobra]

if the o2 sensors are not to bad, you can use carb cleaner and brake cleaner....

 

[HISSIN50]

That's new to me. The only method I've ever heard of working is heating the sensor to clean it off. This can be done by removing the sensor and hitting it with a torch, or (in the older days), by introducing a huge vac leak. This would heat EGT's up and help burn deposits off the Lambda sensor.

You can check them for switching and amplitude (seeing it range from ~0.1-1.0 volts, a couple times a second).

Good luck.

 

[MI95Cobra]

well...my car seems fixed... :SNSign: finnally....well until i have something else installed...