weird problem on my 4g15 EFI

[ralph13]

tanung ko lang meron ako weird problem na ngyari sa engine ko kagabi.

ng palit po ako ng fuel pump (replacement) last 2 weeks. then napansin ko na parang lumakas po sya sa gasolina. as in parang 2.0L ang gamit ko. but lumakas hatak nya. nka proper tune na po. but one night ginalaw ko ung adjustable fuel pressure regulator ko, and walang pressure gauge yun. and i assume that turning it counter clock wise means lowering the pressure (PSI).

so ayun pag ka pihit ko cguro mga 2-3 na ikot after 2 mins biglang namatay engine. then pg ka on ko ulit hndi na maganda ung ignition nya, palyado na siya at manginig makina, i tried na paandarin pero pag aandar na siya hndi nya kaya igulong parang loss of power at namamatay ung makina.

eto pla mga ngyari sknya:

-loss of power
-bagsak idle
-pag ninirerev mo hndi dirediretso putol putol
-minsan namamatay na makina
-hirap tumakbo

then i tried na ibalik sa dating settings ung adjustable FPR but still the same problem again.

kinabukasan ng umaga (cold start ) bagsak idle nya at medyo npapandar ko na siya ung rev nya diretso lang din. pero mga ilan minuto bumalik nmn siya sa dating problem.


i also check the distributor, battery, HTW, spark plugs. okay sila. but still nndun pa din problem

baka may na encounter kayo na same problem like this . salamat

[niky]

tanung ko lang meron ako weird problem na ngyari sa engine ko kagabi.

ng palit po ako ng fuel pump (replacement) last 2 weeks. then napansin ko na parang lumakas po sya sa gasolina. as in parang 2.0L ang gamit ko. but lumakas hatak nya. nka proper tune na po. but one night ginalaw ko ung adjustable fuel pressure regulator ko, and walang pressure gauge yun. and i assume that turning it counter clock wise means lowering the pressure (PSI).

so ayun pag ka pihit ko cguro mga 2-3 na ikot after 2 mins biglang namatay engine. then pg ka on ko ulit hndi na maganda ung ignition nya, palyado na siya at manginig makina, i tried na paandarin pero pag aandar na siya hndi nya kaya igulong parang loss of power at namamatay ung makina.

eto pla mga ngyari sknya:

-loss of power
-bagsak idle
-pag ninirerev mo hndi dirediretso putol putol
-minsan namamatay na makina
-hirap tumakbo

then i tried na ibalik sa dating settings ung adjustable FPR but still the same problem again.

kinabukasan ng umaga (cold start ) bagsak idle nya at medyo npapandar ko na siya ung rev nya diretso lang din. pero mga ilan minuto bumalik nmn siya sa dating problem.


i also check the distributor, battery, HTW, spark plugs. okay sila. but still nndun pa din problem

baka may na encounter kayo na same problem like this . salamat

You adjusted the FPR without a pressure gauge or even a wideband O2 sensor (tailpipe sniffer) to tell you what was happening.

You most likely increased the pressure too much, made it run too rich, and fouled the plugs.

If you have a spark plug wrench, pull them to check if they're wet.

[mina_nuka]

It's like shooting blindfolded or shooting in complete darkness.

Too much guesswork.
Today's cars do not work with "uwido" or Ouija board technology