Oxygen Sensors Help!
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Oxygen Sensors Help!
Hey All,
I've got a 1999 Ford F150 Sport. I believe the engine size is a 4.6 liter V6. Can anyone tell me how many O2 sensors are on this baby. My service engine light is on and I had it checked. I replaced the 2 pre cat sensors based on the code listed on the ODBII test equipment, had the codes cleared and it's back on again.
Not sure if there are any sensors after the cat. I'm at work and I'd like to order them if there are any additional sensors. Can't get under the truck cause it's to freekin low.
Thanks,
Jitters
I've got a 1999 Ford F150 Sport. I believe the engine size is a 4.6 liter V6. Can anyone tell me how many O2 sensors are on this baby. My service engine light is on and I had it checked. I replaced the 2 pre cat sensors based on the code listed on the ODBII test equipment, had the codes cleared and it's back on again.
Not sure if there are any sensors after the cat. I'm at work and I'd like to order them if there are any additional sensors. Can't get under the truck cause it's to freekin low.
Thanks,
Jitters
Postmaster
Joined: Oct 2003
Posts: 4,516
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From: SoCal
Theres lots of 02 sensor codes. You need to pull the codes again & post the exact code here.
Example, an 02 lean code could mean a leaking intake manifold, gasket and changing the 02's wont fix that.
Example, an 02 lean code could mean a leaking intake manifold, gasket and changing the 02's wont fix that.
Last edited by 87 XLT; Aug 8, 2006 at 12:06 PM.
Postmaster
Joined: Oct 2003
Posts: 4,516
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From: SoCal
It's lean on both banks then.
I have a very handy little gadget called a sensor tester that I would connect to the MAF sensor. Then slowly increase engine speed to check for glitches in the MAF signal voltage.
Check the intake tube between the MAF sensor & the throttle body if it's loose or leaking, that will cause it to be lean.
I have a very handy little gadget called a sensor tester that I would connect to the MAF sensor. Then slowly increase engine speed to check for glitches in the MAF signal voltage.
Check the intake tube between the MAF sensor & the throttle body if it's loose or leaking, that will cause it to be lean.
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Hey there!
I believe I found the problem. Located on the rear of the intake is a piece of hose approximately 5 to 6 inches long that connects to a Y connector on the PCV valve. I found that the back of it along the firewall had collapsed and there was a huge slit. So it was sucking in a lot of extra air.
Thanks for all your help!
Have a great day.
Jitters
I believe I found the problem. Located on the rear of the intake is a piece of hose approximately 5 to 6 inches long that connects to a Y connector on the PCV valve. I found that the back of it along the firewall had collapsed and there was a huge slit. So it was sucking in a lot of extra air.
Thanks for all your help!
Have a great day.
Jitters
Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
Originally Posted by Jitters
Hey there!
I believe I found the problem. Located on the rear of the intake is a piece of hose approximately 5 to 6 inches long that connects to a Y connector on the PCV valve. I found that the back of it along the firewall had collapsed and there was a huge slit. So it was sucking in a lot of extra air.
Thanks for all your help!
Have a great day.
Jitters
I believe I found the problem. Located on the rear of the intake is a piece of hose approximately 5 to 6 inches long that connects to a Y connector on the PCV valve. I found that the back of it along the firewall had collapsed and there was a huge slit. So it was sucking in a lot of extra air.
Thanks for all your help!
Have a great day.
Jitters
Steve
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