emissions help
Thread Starter
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Freshman User
Joined: Oct 2003
Posts: 26
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emissions help
i have an 87' ranger, 2.9L, 6 cylinder, electronic fuel injection, 5-speed manual transmission, two-wheel drive.
it had failed the mass emissions test with a hydrocarbon reading of 5.60 gpm.
since then i have changed the oxygen sensor which brought the reading down to 4.25, but the limit is 3.20.
what else can i change on the truck to bring the hydrocarbon reading down?
none of the emissions controls systems have been changed on the truck (other than the oxygen sensor) due to the fact that i bought it used last febuary.
any help would be greatly appreciated.
it had failed the mass emissions test with a hydrocarbon reading of 5.60 gpm.
since then i have changed the oxygen sensor which brought the reading down to 4.25, but the limit is 3.20.
what else can i change on the truck to bring the hydrocarbon reading down?
none of the emissions controls systems have been changed on the truck (other than the oxygen sensor) due to the fact that i bought it used last febuary.
any help would be greatly appreciated.
Senior User
Joined: Oct 2003
Posts: 413
Likes: 0
From: Connecticut
Welcome to FTE 1987rangerpu,
I the need to know is now, have you computer codes pulled for free at Advance or Auto Zone, 1st call to confirm!
__________________________________________________ __
‘90 Ranger XLT: 2.3L, EEC-IV, EFI, DIS, 2wd, Mazda 5sp 127K/mi
I the need to know is now, have you computer codes pulled for free at Advance or Auto Zone, 1st call to confirm!
__________________________________________________ __
‘90 Ranger XLT: 2.3L, EEC-IV, EFI, DIS, 2wd, Mazda 5sp 127K/mi
Senior User
Joined: Mar 2003
Posts: 282
Likes: 0
From: ontario
welcome to the FTE... what i always do is change my oil and filter pcv valve air filter and the spark plugs. did you check your thermostat and see if its working ok? sometimes they fail with the emissions too by over heating the engine. test your catalytic converter to see if its plugged at the shop ..hope this will help
New User
Joined: Jun 2003
Posts: 18
Likes: 0
I'm up in Canada and we have to do our emissions every other year. I just paseed and I bought the truck for 100 bucks. Mind you I put approx. 600 into it including a new converter. Along with what Black Wolf said, if you think you need a new converter put one on and try the night before the test put high octane gas as well. Also make sure timing is right on the money. My friend is a mechanic, he said FORDS are pretty good for emission tests. Let me know what happens.
Senior User
Joined: Oct 2003
Posts: 413
Likes: 0
From: Connecticut
Hi ya group,
Just replaced my thermostat because I pulled a code 21 (ECT) on my EEC- IV / PCM. Well...to make this short, I had a rusted hose clamp that busted and this stopped the engine from getting up to operating temp!
Summary: Don't always go for the most expensive problem! This one was worth 50 cents and 5 min in time!
As for emissions, I'm looking forward to it! I have 8 plugs in my 2.3L and I'm curious to see the readings; being the new owner and all!
__________________________________________________ _
‘90 Ranger XLT: 2.3L, EEC-IV, EFI, DIS, 2wd, Mazda 5sp 127K/mi
Just replaced my thermostat because I pulled a code 21 (ECT) on my EEC- IV / PCM. Well...to make this short, I had a rusted hose clamp that busted and this stopped the engine from getting up to operating temp!
Summary: Don't always go for the most expensive problem! This one was worth 50 cents and 5 min in time!
As for emissions, I'm looking forward to it! I have 8 plugs in my 2.3L and I'm curious to see the readings; being the new owner and all!
__________________________________________________ _
‘90 Ranger XLT: 2.3L, EEC-IV, EFI, DIS, 2wd, Mazda 5sp 127K/mi
Thread Starter
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Freshman User
Joined: Oct 2003
Posts: 26
Likes: 0
i allready changed the oil and oil filter along with the plugs and wires. the thermostat and timing are all of, too.
now im gonna replace the pcv valve and air filter. then next week im gonna take to get the converter tested.
thanks for all the help.
now im gonna replace the pcv valve and air filter. then next week im gonna take to get the converter tested.
thanks for all the help.
Thread Starter
|
Freshman User
Joined: Oct 2003
Posts: 26
Likes: 0
i allready changed the oil and oil filter along with the plugs and wires. the thermostat and timing are all of ("ok"... typo), too.
now im gonna replace the pcv valve and air filter. then next week im gonna take to get the converter tested.
thanks for all the help.
now im gonna replace the pcv valve and air filter. then next week im gonna take to get the converter tested.
thanks for all the help.
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