Kia Carens. Manual

2001 > 1.8L DOHC >

Diagnosis

General

Problem

Possible

Action

Engine cranks but will not
start

Fuel pressure problem

Replace fuel pressure regulator
Replace leaking injector
Replace injector O-ring

Hard to start (cold engine) Idle air control valve not working

Defective throttle position sensor
Fuel pressure too low
Engine coolant temperature sensor
open circuit or out of range

Replace
Replace throttle body
Replace regulator, check fuel line leakage
Repair harness
Replace sensor

Rough idle (cold engine)

Fuel injector flow
Throttle plate stuck open

Throttle position sensor malfunction
Idle air control valve inoperative
Air intake duct disconnected between
MAF sensor and throttle body
Leaking injector
Leaking injector O-ring seals

Replace injector
Clean and adjust throttle plate
Adjust throttle cable
Replace TP sensor
Replace
Reconnect air duct

Replace
Replace

Stalling or hesitation(hot
or cold engine)

Throttle position sensor malfunction

Replace TP sensor

Hard start(hot engine)

Incorrect fuel pressure

Check pressure regulator or fuel pump

Stalls on quick stops or
deceleration

Mass air flow sensor
Open circuit or out of range

Replace MAF sensor
Check electrical circuit (see Wiring
Diagram)

Poor performance/loss of
power

Clogged injectors
Air filter clogged

Check injector flow rate
Replace

Fuel gauge

Problem

Possible cause

Action

Fuel gauge shows empty
at all fuel levels of fill

Loose or dirty wiring connections or
short to ground wiring

Check wiring, connectors and sender
assembly. Repair, clean or righten as
needed.

Leaking sender float

Replace sender

Missing sender float

Install float. Make sure float is secured on
sender arm.

Short circuit in sender assembly

Test for correct resistance values and
replace as needed.

Sender assembly arm movement
obstruted

Inspect fuel tank and sender for
cause.Correct or replace faulty component.

Fuel gauge will not read
full when tank is full

Wrong sender installed

Check part number. If incorrect, install
correct part

Sender arm movement obstructed
(float rod bent)

Inspect fuel tank and sender for cause.
Correct or replace faulty component.

Leaking float

Install new sender

Sender or gauge calibration

Test correct resistance value and replace
component as needed.

Fuel tank not filling to rated capacity

Check fuel tank fill vent for kinks or
obstructions.
Correct as required and fill tank to verify
proper capacity.

Fuel gauge shows full at
all fuel levels

Loose or dirty wiring connections or
open circuit in wiring

Check wiring, connections and sender
terminals. Repair or clean if required.

Open circuit in sendng unit

Test for correct resistance valves and
replace if required.

Sender arm movement obstructed

Inspect fuel tank and sender for cause.
Gently bend float arm away from
obstruction or replace component.

Fuel gauge reads
incorrectly, but all fuel
system components are
running properly.

Fuel tank damage

Fuel sender mounting angle may have
changed or the sender unit may be
damaged.

Kia Carens. Manual - part 65