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Smart Reasoning:

C&E

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Qaagi - Book of Why

Causes

Effects

Hissing noise ... a vacuum leakcausesrough idle and stalling

the problemcausingrough idle and misfires

However , when these electronics fail inside the throttle body , latency and tolerances increase in operationcausinghesitation , surging , and rough idle

Bad TPSwill causerough idle / hesitation

And in addition to affecting the calibration of the fuel system ,thereby causingrough idle and hesitation

Badly adjusted tpshas causedrough idle and hesitation

engine valve timingcausingstumbling and rough idle

Deposits coating the inside of a throttle bodycan causerough idling , hesitation and surging

Using this product also helpsto preventstalling , hesitation and rough idle

deposits VALVOLINE FUEL INJECTOR Valvoline Fuel Injector Cleaner 602378(passive) caused byrough idle and hesitation

hydrocarbon , nox and co emissions helpspreventrough idle , hesitation , and stalling

A bad onewill causerough idle and stalling

to stay oncausingrough idle and stalling

Low voltagewill causestalling , rough idle , and/or hesitation

like your EGR valve is sticking in the open position when warmcausingthe rough idle , hesitation , and stalling

carb problemscauserough idle and stalling

faulty egr valve could be stuck partially openwill causerough idle and stalling

The leak ... incomplete combustioncauseshesitation and rough idling

The leak results in incomplete combustioncauseshesitation and rough idling

This leak ... inefficient combustioncausesrough idling and hesitation

41 code p0443causingrough idle and stalling

One fuel injector stuck opencausingrough idle and stalling

egr problemscausedsurging and rough idle

IAC ) valve in the throttle bodycan causestalling and rough idle

This requires the increase in idle speedsto preventstalling and rough idle

PCV valve ( back of motor ) loosecausesrough idle and stalling

the charcoal canistercausingrough idle and stalling

An EGR ( Exhaust Gas Recirculation ) valve that is malfunctioning by sticking partially openwill causerough idle and stalling

Misses in the enginemay leadto a rough idle and hesitation

a faulty / broken EGR solenoidcausesrough idle and stalling

an inconsistent air leakcausingerratic and rough idle

much better performance and mileage from 93 RON octane than with 87 RON or 89 RONcausedhesitation and rough idling

Anything near 14AFRis causingrough idle and misfires

a P0037 fault codewill causerough idling and hesitation

it ran worsecausingrough idle and backfires

the manifoldcausesrough idle and hesitation

Good - quality cleanerspreventstalling and rough idle

Codes : P0491 or P0492 Boxer engines are seemingly prone to running lean issuescausingrough idle and hesitation when accelerating

a pice of debris , ( chunk of carbon ... the EGR valvewill ... causerough idle and stalling

Both coil packs were failingcausingrough idle and severe hesitation

for more than 10 minuteshas setfor more than 10 minutes

the engine to race at idlecan causethe engine to race at idle

the CELcausingthe CEL

by over fuelingcausedby over fueling

if EGR occurred when the engine was coldwould resultif EGR occurred when the engine was cold

from a mis - matched Mass - Air Flow Sensor signalresultingfrom a mis - matched Mass - Air Flow Sensor signal

problem(passive) caused byproblem

in horrible performance , loss in power , poor fuel economy and other major engine related issues as wellcan resultin horrible performance , loss in power , poor fuel economy and other major engine related issues as well

by a bad connector(sis causedby a bad connector(s

in part by poor fuel distribution and carburization in internal combustion enginescausedin part by poor fuel distribution and carburization in internal combustion engines

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Smart Reasoning:

C&E

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