Dacia Solenza 2004, Repair Manual

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IGNITION AND INJECTION
17
17 - 87
ALP 4 INTEMPERATE ACCELERATION OR DECELERATION
(engine unstable running)
RECOMMENDATIONS
Do not consult this diagnostic but before a complete checking by
means of the CLIP tester
Check if air filter is not deformed.
Check if there is petrol in the fuel tank (fuel indicator failure)
Check if the vehicle is supplied with adequate fuel
Check that supply circuit hoses are not broken (especially further to a dismounting)
Check the condition of the fuel filter
Check the condition of the fuel tank
Check that fuel tank aeration is taking place.
Disconnect the connection hose between the canister purging valve and the intake manifold.
Clamp the connection hose in order to stop the air passing.
If there are no more disturbances, the cause is the canister purging valve.
Check the spark plugs and ignition coil condition
Check that these elements are specific to that vehicle.
Check that the exhaust route is not clogged and the catalyst is not clogged.
Check the sealing of the exhaust manifold.
Check, by means of the oil dipstick, that oil level is not too high.
Check for lack of sealing at servo-brake (noise).
Check the intake manifold condition
Check if the valve body is not clogged
Check the engine compressions.
Check that brake calipers, drums and bearings are not gripped.
Check that tires are inflated
Check the engine flywheel condition
Check that cooling system is properly operating
AFTER
Perform a checking by means of the CLIP tester.
REPARATION
Failure locating algorithm
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