Thanks in advance for your help. My 96 JGC Laredo is spitting out the codes
for the O2 sensor circuit and MAP sensor problems (engine light is on)- I
tested the MAP sensor with a multitester, and it checks out - I tested the
O2 sensor and it reads 0.0 volts continous. I am about to go on a 5 hour
trip and am wondering if I should definately replace it or just ignore the
engine light?? (could use an extra $50 for my trip)

Please help! Im leaving in a couple of hours!

 

You could use that money up in extra gas if the computer thinks it is
running too lean and puts it full rich or burn out a piston if it thinks
it's running too rich and holds it lean.

I would change it.

Isn't it always just before a trip that something stupid lets go? With
me it always seems to be a u-joint gone...

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Amadeus wrote:
>
> Thanks in advance for your help. My 96 JGC Laredo is spitting out the codes
> for the O2 sensor circuit and MAP sensor problems (engine light is on)- I
> tested the MAP sensor with a multitester, and it checks out - I tested the
> O2 sensor and it reads 0.0 volts continous. I am about to go on a 5 hour
> trip and am wondering if I should definately replace it or just ignore the
> engine light?? (could use an extra $50 for my trip)
>
> Please help! Im leaving in a couple of hours!

 

You could use that money up in extra gas if the computer thinks it is
running too lean and puts it full rich or burn out a piston if it thinks
it's running too rich and holds it lean.

I would change it.

Isn't it always just before a trip that something stupid lets go? With
me it always seems to be a u-joint gone...

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Amadeus wrote:
>
> Thanks in advance for your help. My 96 JGC Laredo is spitting out the codes
> for the O2 sensor circuit and MAP sensor problems (engine light is on)- I
> tested the MAP sensor with a multitester, and it checks out - I tested the
> O2 sensor and it reads 0.0 volts continous. I am about to go on a 5 hour
> trip and am wondering if I should definately replace it or just ignore the
> engine light?? (could use an extra $50 for my trip)
>
> Please help! Im leaving in a couple of hours!

 

Not replacing the 02 sensor could or will make the engine run rich, possibably
killing the catalitic converter in the process. Plus changing it out could
increase your gas milage, a slight savings.


Kevin in Iowa
99XJ
http://7slotgrille.com/jeepers/lwb/kevinxj/index.html

 

Not replacing the 02 sensor could or will make the engine run rich, possibably
killing the catalitic converter in the process. Plus changing it out could
increase your gas milage, a slight savings.


Kevin in Iowa
99XJ
http://7slotgrille.com/jeepers/lwb/kevinxj/index.html

 

Amadeus did pass the time by typing:
> Thanks in advance for your help. My 96 JGC Laredo is spitting out the codes
> for the O2 sensor circuit and MAP sensor problems (engine light is on)- I
> tested the MAP sensor with a multitester, and it checks out - I tested the
> O2 sensor and it reads 0.0 volts continous. I am about to go on a 5 hour
> trip and am wondering if I should definately replace it or just ignore the
> engine light?? (could use an extra $50 for my trip)
>
> Please help! Im leaving in a couple of hours!

Your ZJ is going to run rich and your milage will suffer.
For the short-term you might be OK but long term you will
melt the catalytic convertor and carbon up your engine.

If I were you, I would replace the O2 sensor. Marginal is
one thing, dead is something else.

NAPA has them.


--
-- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors

 

Amadeus did pass the time by typing:
> Thanks in advance for your help. My 96 JGC Laredo is spitting out the codes
> for the O2 sensor circuit and MAP sensor problems (engine light is on)- I
> tested the MAP sensor with a multitester, and it checks out - I tested the
> O2 sensor and it reads 0.0 volts continous. I am about to go on a 5 hour
> trip and am wondering if I should definately replace it or just ignore the
> engine light?? (could use an extra $50 for my trip)
>
> Please help! Im leaving in a couple of hours!

Your ZJ is going to run rich and your milage will suffer.
For the short-term you might be OK but long term you will
melt the catalytic convertor and carbon up your engine.

If I were you, I would replace the O2 sensor. Marginal is
one thing, dead is something else.

NAPA has them.


--
-- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors