Gas consumption too much for my corolla

[erickdpogi]

Good day to all tsikoteers!

I'd like to ask if there is a possibility that i'll manage to save gas by having my car's ECU reprogrammed similar to be the Optra gas consumption.

My car is old but is still in good condition, its a 94 toyota corolla GLi with 4A-FE engine, but recently, i've come to notice that my gas consumption is way too much for me.

I've also come to notice that the consumption changed from july this year.

Spark plugs, change oil, timing belts even engine oil treatments, ive done last month but nonetheless, the consumption didn't change.

Is there a need to check the engine? Do I need overhaul?

Thanks.

[speedyfix]

corollas can't be flashd like the optra.

have the engine checked kung bakit malakas sya.

[userfriendly]

Aside from the Optra, is there any other car model whose ECU can be flashed to improve FC?

[mbeige]

Check the obvious first - tire pressures, excess load in trunk, driving habit, use of AC, etc.

[erickdpogi]

* mbeige, the tire pressures are checked everytime it is used. driving habit, normal; load in trunk is minimal; use of AC always in the center for both the thermostat and fan.

Recently, even though it's newly changed oil, white smoke is coming out of the exhaust when started. why is this so?

am using Bosch Super4 sparkplugs and shell helix semi-synthetic as oil.

Thanks for the replies!

[raikkah]

* mbeige, the tire pressures are checked everytime it is used. driving habit, normal; load in trunk is minimal; use of AC always in the center for both the thermostat and fan.

Recently, even though it's newly changed oil, white smoke is coming out of the exhaust when started. why is this so?

am using Bosch Super4 sparkplugs and shell helix semi-synthetic as oil.

Thanks for the replies!

Pre,,,
ilang Kms/liter ba consumption mo...?

[mbeige]

* mbeige, the tire pressures are checked everytime it is used. driving habit, normal; load in trunk is minimal; use of AC always in the center for both the thermostat and fan.

Recently, even though it's newly changed oil, white smoke is coming out of the exhaust when started. why is this so?

am using Bosch Super4 sparkplugs and shell helix semi-synthetic as oil.

Thanks for the replies!

Give us a definite figure of your MPG, tire pressures and current mileage. Mahirap ang tantsahan, even if you check them everyday.

If you're concerned of white smoke at start up, it may just be condensation as water in the exhaust is being burned. If the white smoke persists when driving with a warmed up engine, you better start checking for headgasket problems.

For the 4AFE engine, blue smoke at start up and when driving is usually indicative of valve stem seals.

[niky]

RE: judging fuel consumption: Instead of judging by how far you go on the money, find out exactly how many kilometers you can go for the amount of gas you're using.

500 php? What gas? Unleaded? Premium Unleaded? or boutique (V-Power, Blaze) Unleaded? What price? With lower grades of unleaded, that's 13.5+ liters, with higher grades, 12.5.

If it's 13 liters, alabang to makati and back is roughly 50 kms. "Almost" empty could mean you're using anywhere from 8-10 liters. Roughly 5-6 km/l? Better make sure.

But considering part of that is on the highway, there's definitely something wrong.

----

Pull the Bosch sparkplugs and check their condition. If they're a few months old, they should be reddish in color. Have a shop check your compression and check for leaks. Like m_ron suggested, you could be leaking oil through your piston rings, or oil and/or coolant into the combustion chamber through a busted gasket.

If the car doesn't feel like it's losing power, then the problem might be minor... but if it really is a leaking gasket, don't wait too long before having it fixed...

Aside from the Optra, is there any other car model whose ECU can be flashed to improve FC?

According to rumor on the PTP boards, the JDM/Mazdaspeed ECU for the 323/Familia (96+) has a better timing/fuel map, resulting in more power and better fuel consumption. It's an ECU swap, though, not a re-program... and suwertihan nalang makahanap.

[dennis powell]

Good day to all tsikoteers!

I'd like to ask if there is a possibility that i'll manage to save gas by having my car's ECU reprogrammed similar to be the Optra gas consumption.

My car is old but is still in good condition, its a 94 toyota corolla GLi with 4A-FE engine, but recently, i've come to notice that my gas consumption is way too much for me.

I've also come to notice that the consumption changed from july this year.

Spark plugs, change oil, timing belts even engine oil treatments, ive done last month but nonetheless, the consumption didn't change.

Is there a need to check the engine? Do I need overhaul?

Thanks.

94 corolla 4a-fe engine and in good condition,that means well maintain and it running smooth,,before you do the engine overhaul check first the tire pressure then the 4 way alignment,align it if kailangan,...and after that,have somebody to check the ignition timing,because incorrect ignition timing can cause a poor fuel economy and only that,poor fuel economy can be cause by a wide range of problem and some of these include rich air-fuel mixture,engine miss,or leakeage in the fuel system,but like i said check first the ignition timing.