What's Wrong In This Green Test Report ?

[NRX]

Hi guys, below is the green test report of my car which was done by the previous owner. Please have a look

CO levels seem pretty high where it gets closer to 4 while the cutoff point is at 4.5

I also got the previous year's green test report too, in that the both CO levels are well below 1.0 and as I remember the O2 level is lower and CO2 level is higher than of this year's one,Which I think is the ideal scenario. And the HC level was lower too.

I'm sensing a partial burning from this CO levels and I'm getting low fuel mileage (around 8Kmpl mixed traffic)

Your ideas are welcome

Edit: The car is a 94 Sunny FB13 - Petrol

Edited December 28, 2011 by NRX

[The Don]

  On 12/28/2011 at 9:01 AM, NRX said:

Hi guys, below is the green test report of my car which was done by the previous owner. Please have a look

CO levels seem pretty high where it gets closer to 4 while the cutoff point is at 4.5

I also got the previous year's green test report too, in that the both CO levels are well below 1.0 and as I remember the O2 level is lower and CO2 level is higher than of this year's one,Which I think is the ideal scenario. And the HC level was lower too.

I'm sensing a partial burning from this CO levels and I'm getting low fuel mileage (around 8Kmpl mixed traffic)

Your ideas are welcome

Yes the car might be running a bit rich. Is it a diesel or a petrol? Also it might be helpful to mention the car model and manufacturing year. A lot depends on the fuel supply mechanism as well.

[NRX]

Sorry mate! It's a 94 Sunny FB13 with a carburetor, runs on Petrol

[The Don]

  On 12/28/2011 at 2:39 PM, NRX said:

Sorry mate! It's a 94 Sunny FB13 with a carburetor, runs on Petrol

I wonder if there is an issue with the carburettor. Did you have it serviced recently or has somebody tried to tune the car recently?

Whatever is the case it might be worthwhile to go to a carburettor specialist and have the system inspected. This could be costing money in fuel efficiency is well.

[NRX]

  On 12/28/2011 at 5:17 PM, The Don said:

I wonder if there is an issue with the carburettor. Did you have it serviced recently or has somebody tried to tune the car recently?

Whatever is the case it might be worthwhile to go to a carburettor specialist and have the system inspected. This could be costing money in fuel efficiency is well.

Not since I bought it mate, I'm thinking the carburettor needs to be tuned, but what is confusing is I can see water droplets from the tail pipe when I start the car in mornings which indicates that the tuning is fine

[The Don]

  On 12/29/2011 at 4:33 AM, NRX said:

Not since I bought it mate, I'm thinking the carburettor needs to be tuned, but what is confusing is I can see water droplets from the tail pipe when I start the car in mornings which indicates that the tuning is fine

Water droplets are not always an indicator of good tuning. On a carburettor rebuild, the mechanics messed up the injector replacement and the fuel consumption went up while there was still loads of water visible through the exhaust pipe. I think best to get the carburettor looked at and perhaps do a complete repair if it hasn't been done in a while. Your mechanic can advise if this is necessary. You can purchase a carburettor repair kit which has everything you need.

[NRX]

  On 12/29/2011 at 11:10 AM, The Don said:

Water droplets are not always an indicator of good tuning. On a carburettor rebuild, the mechanics messed up the injector replacement and the fuel consumption went up while there was still loads of water visible through the exhaust pipe. I think best to get the carburettor looked at and perhaps do a complete repair if it hasn't been done in a while. Your mechanic can advise if this is necessary. You can purchase a carburettor repair kit which has everything you need.

Oh I didn't know about that, thanks for the information mate

[JohnGalt]

  On 12/29/2011 at 11:10 AM, The Don said:

Water droplets are not always an indicator of good tuning. On a carburettor rebuild, the mechanics messed up the injector replacement and the fuel consumption went up while there was still loads of water visible through the exhaust pipe. I think best to get the carburettor looked at and perhaps do a complete repair if it hasn't been done in a while. Your mechanic can advise if this is necessary. You can purchase a carburettor repair kit which has everything you need.

Don, once a mechanic suggested that I "service" the carburettor by getting the repair kit on an EE96. Then he went on to keep the old jets as according to him the new jets are not the right size.

When you usually install the repair kit, do you replace all the parts with the new jets etc...? Specially in an older car like the EE96?

[The Don]

  On 12/30/2011 at 12:53 PM, JohnGalt said:

Don, once a mechanic suggested that I "service" the carburettor by getting the repair kit on an EE96. Then he went on to keep the old jets as according to him the new jets are not the right size.

When you usually install the repair kit, do you replace all the parts with the new jets etc...? Specially in an older car like the EE96?

Usually you do, but if the jets were not the right size I wonder if it was the correct kit! When we serviced our carburettor on a Mazda we got the kit from the agents since there was not much price difference for the original kit if bought from outside. All the parts fitted perfectly except when taking the old injector jet out it broke or something so they had to drill it out and made a mess of the whole thing!

I would have returned the kit and got the proper one if I was you... The sad bit here is that to rectify the situation now you'll need the entire kit again! How much was the kit, where did you get it from and was it genuine Toyota?

[nexus]

  On 12/30/2011 at 12:53 PM, JohnGalt said:

Don, once a mechanic suggested that I "service" the carburettor by getting the repair kit on an EE96. Then he went on to keep the old jets as according to him the new jets are not the right size.

When you usually install the repair kit, do you replace all the parts with the new jets etc...? Specially in an older car like the EE96?

afaik carburettor repair kit have right size jets when our old fb13 carburettor jets worn out we couldn't find correct size jets anywhere only carburettor repair kit have correct size jets but i dont know how this works in ee96 though.

[JohnGalt]

  On 12/30/2011 at 1:47 PM, The Don said:

Usually you do, but if the jets were not the right size I wonder if it was the correct kit! When we serviced our carburettor on a Mazda we got the kit from the agents since there was not much price difference for the original kit if bought from outside. All the parts fitted perfectly except when taking the old injector jet out it broke or something so they had to drill it out and made a mess of the whole thing!

I would have returned the kit and got the proper one if I was you... The sad bit here is that to rectify the situation now you'll need the entire kit again! How much was the kit, where did you get it from and was it genuine Toyota?

It was the correct kit AFAIK. Can't remember whether it was genuine. Baas fellow got the kit by comparing the packing :-) Think it was around 3500 bucks.

[NRX]

  On 12/30/2011 at 12:53 PM, JohnGalt said:

Don, once a mechanic suggested that I "service" the carburettor by getting the repair kit on an EE96. Then he went on to keep the old jets as according to him the new jets are not the right size.

When you usually install the repair kit, do you replace all the parts with the new jets etc...? Specially in an older car like the EE96?

That's exactly what my mechanic is telling me too when I asked him about the repair kit. He says that you don't usually get correct jet sizes with a carburettor repair kit. I wonder if there is any use in using the old wornout jets in the first place

Edited January 2, 2012 by NRX