Erratic idling on a cold engine

[g26]

On a cold engine, erratic ang idling and parang mamamatay ang makina pag tinatapakan ang accelerator pedal. Vios 05, 1.5 AT.
Nakapagpalit na ko ng 2 ignition coils before. D kaya may faulty sa supply ng kuryente sa spark plug? Btw, bago ang spark plugs. Standard OEM.
Thanks sa sasagot.

[sirkosero]

^ try having the throttle body and maf sensor cleaned.

If you have facebook, look for the toyota vios maintenance group. Ganyan discussion dun

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[vorkalito]

Try looking into the EFI system

[g26]

^ try having the throttle body and maf sensor cleaned.

If you have facebook, look for the toyota vios maintenance group. Ganyan discussion dun

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Thanks sir, kakalinis ko lang 4 months (less than 4,000 kms) ago ng throttle body & MAF sensor. Will try cleaning ulit and will visit the fb page you mentioned.

[g26]

Try looking into the EFI system

Hi sir. I'm aware that the problem is in the EFI but how do i go abt it? Any specific?

[admiral88]

Yung fuel filter sir nagpalit na kayo?

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[jodski]

Kapag ganyan pinagawa mo na physical checks and the problem is still persistent, I suggest magpa OBD scan ka na muna.

It's just a little expense para malaman mo specific na papatignan once you get the results

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[jick.cejoco]

Please define/describe erratic idling on a cold engine. The more details you have the easier the diagnosis

[pavila03]

Good Pm po, i have same issue nag punta ako sa dealership at nag pa diagnose ng issue, sabi nila I need to replace my MAF sensor, sobrang mahal ng piyesa, okay lang ba gumamit ng second hand na MAF? Mazda 3 2005 ung kotse ko.. Thanks sa mga sasagot

[jick.cejoco]

Good Pm po, i have same issue nag punta ako sa dealership at nag pa diagnose ng issue, sabi nila I need to replace my MAF sensor, sobrang mahal ng piyesa, okay lang ba gumamit ng second hand na MAF? Mazda 3 2005 ung kotse ko.. Thanks sa mga sasagot

What it is the airflow indication on the scanner? It should be around 1 gram per second per liter of engine displacement. Check other engine parameters. The engine vacuum should be between 17 and 21 inches of mercury. Use gauges, do not base your judgment on opinions and guesses