help re fuel injected cars

[brainmafia_310]

gud pm, im planning to buy my first car po, hopefully hindi p kao makapagdecide dahil sa budget and technicality. mga boss, docs and masters of tsikot, ask ko lang po if may idea kayo regarding fuel injected n gasoline engine... kasi parang napapansin ko baka tulad sya ng diesel engine n laging nagpapacalibrate, then ung computer box nito tipong ung mga 1996 down n injection system ok po ba? how long po ba life ng gasoline injection system kasi meron akong nakikita n murang fuel injected cars n pasok po sa budget ko kaso hindi ako marunong tumingin kung ok pa ung injection system nito tsaka ano po ba ang wear and tear ng mga computer box nito, kasi baka eto magpasakit ng ulo ko if ever at ma junc lng ung car, heheheh.... please help me peepz....

thanks

[OTEP]

Fuel injection systems require little maintenance and keep their state of tune better than carb engines.

The computer box is a non-moving part, it is not really subject to wear and tear. Repairing the box has been done on Monteros but replacing them with surplus units is more practical in the local setting.

Very few vehicles nowadays are non-electronic. I'd worry about other aspects of the vehicle first. ECU failures are rare.

[basti08]

another plus about EFI equipped engines is that they can use ethanol blended fuels, something that carb engines cant...

saves you fuel.

[brainmafia_310]

oic thanks for the input, about the clibration? does it requires often calibration like diesel fuels? how about ung lifespan ng injector nito?

[baludoy]

ot lang konti mga bos. effective and safe ba yung efi cleaners in the market? the ones you just pour in the gas tank, to be mixed w/ your fuel? prestone is the brand name

[niky]

You don't really need fuel injector cleaners. If you think your injectors are getting dirty, you just load a full tank or two of the highest octane you can buy.

Ever notice that fuel injector cleaners, carb cleaners and octane boosters are all sold in similar bottles by the same companies? It's because it's gasoline that helps clean your injectors, and the higher the octane, the cleaner they get.

ECU failure is very rare, unless your car has been flooded or you've swapped engines and have a rat's nest of soldered together custom wiring under the hood. And even then, secondhand ECUs cost something like 5-15k only for most engines. A lot of early fuel injected cars are pushing on twenty years and they're still running on the same boxes.

[brainmafia_310]

ok, so it means wala pala dapat ikatakot sa ECU and injector ng mga car models with an (i), kasi me nakita me medyo mura and pasok sa budget ko n naka injector n sya, kaso parang ang myth is hirap daw i maintain ng ecu nun engine lalo n pag out of tune up, di daw kaya ng kung sino lang mechaniko pero sabi mo nmn to clean it dapat 1 or 2 full tank lang ng high octane n gaso.... thanks for the input n din po....

[EssB]

Regular maintenance lang din naman po sa EFI engines, but at least unlike carbs, you always need to have your jettings checked and also the contact points (if applicable).

bottled injector cleaners or even a tank of fuel can't clean your injectors when the filters are already clogged....

check out this fuel injector cleaning thread in grupotoyota (you need to register though)...
http://www.grupotoyota.com.ph/board/...ic.php?t=41924

BTW, matagal (ilang years) ang interval ng fuel injector cleaning....

Regarding the ECU, basta walang gagalaw ng wirings (na usually pinagmumulan ng sira pag may maling connections), di sya masisisra... or wag lang mababaha...

[niky]

Take it from me... I know firsthand what happens when your ECU gets dunked in floodwater...

There's ultrasonic injector cleaning (I've heard, ha, not sure) here, but at the price, I don't know if it's worth it. At least it takes a very very long time for injectors to go dirty, nga, unlike the jets in a carb that require a good cleaning every oil change or every other oil change, depending on your gas and use.

[EssB]

merong pong pricing dun sa thread sa GT... at meron nga pong ultrasonic cleaning.
ATI
P471/injector cleaning
P141/baklas kabit per injector
P200/filter basket/injector