Mechanics

ENGINE MANAGEMENT LIGHT COMING AND GOING

2003 Opel Astra

Computer problem
2003 Opel Astra 4 cyl Two Wheel Drive Manual 45000 miles

The engine management light has been coming on frequently in the last few days (after having been on a Ferry - don ´t know if this is relevant).

It tends to come on after about 5 minutes of driving but if I turn engine off and on again, it goes.

I found an article on the internet explaining how to get the error code by putting foot on brake and gas pedals, turning ignition on and watching the sequence in which the light flashes (4 sequences with a pause in between each sequence, each sequence representing a single digit number).

On trying this, the sequence gave me the following number 1113. Maybe this is nonsense and I shouldn ´t believe everything I see on te internet.

Anyway there is also a slight whistling sound that SEEMS to be coming from under the car when the engine is running. There is also a slight low level mechanical whirring with the occasional quiet ´clunk click ´ noise coming from the glovebox area.

Any ideas?

Many thanks

Phil
Avatar
Phillipwatt
March 24, 2009.




If you have Twinport engine, P1113 error meens " Port deactivation position sensor circuit high/low voltage".

Sensor is located under inlet manifold. Whet you remove inlet manifold you'll see " manifold flange" which has port deactivation mehanic activated by vacum pump. Sensor sit on the other side and it's similar to TPS in older Z16SE engine, but it's not same sensor.
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Tiny
Zpericic
Sep 28, 2009.
In Romania I found this on a website and it " " worksP1113: Este o problema cunoscuta la motoarele Z16XEP pe Astra-H.
Daca ajungeti la reprezentanta cu aceasta eroare, vi se spune sa inlocuiti galeria de admisie.
Nu e vina lor, asta e rezolvarea cunoscuta de ei (si de mine pana ieri).
Posted Image Posted Image
Costuri: 3400 lei galeria, 400 lei manopera instalare. Sau pe garantie, pentru norocosi.

Am intalnit-o de cateva ori pana acum, insa ieri i-am venit de hac ; )

Simptome: Doar se aprinde beculetul enervant (masinuta cu cheita).
Si ce daca? Ar zice unii. In primul rand, e enervant. In al doilea rand, daca ai tot timpul beculetul aprins nu stii cand apare alta problema.
Daca aveti si alte simptome (gen tremurat), nu va incadrati la aceasta rezolvare. Ma contactati si studiem.

Cauza: ECU vede o tensiune prea mica pe senzorul pozitie TW la initializare si are impresia ca e intrerupt sau ca e scurt la masa.

Solutie: Ii aratam lu' ECU ca nu e niciun scurt si nicio intrerupere.
In primul rand, verificam senzorul (gasiti mufa lui in partea dreapta a galeriei de admisie, adica inspre baterie): Posted Image
Posted ImagePosted Image
Pin 1 - fir NegruAlb
Pin 2 - fir Maro
Pin 3 - fir RosuAlbastru
Practic e un potentiometru care, masurat cu un ohmmetru, are urmatoarele valori: ~7.2 Kohm intre pinii 1 si 2 indiferent de pozitia cursorului; ~1.6 Kohm intre 3 si 2, respectiv 8.8 Kohm intre 3 si 1 cand cursorul e la minim (adica lasat liber); ~8.8 Kohm intre 3 si 2, respectiv 1.6 Kohm intre 3 si 1 cand cursorul e la maxim (adica la vreo 100 grade); Chiar daca nu are fix valorile astea, nu va impacientati. Daca aveti variatie de rezistenta intre minim si maxim, e ok.
Nu intram prea mult in amanunte, ca sa nu para prea complicat : )

Se adauga una bucata rezistor de 680 ohm in serie cu potentiometrul, pe firul Maro (adica la pinul 2): Posted Image
In acest fel, la initializare ECU vede o tensiune de ~0.6V in loc de ~0.1V si nu mai da eroare. Totul e in regula, aceasta valoare este perceputa ca si pozitie 0%.
Am efectuat toate testele posibile, fara sarcina (cu Tech2) cat si in sarcina. Twinportul se comporta excelent.

Cam asta e tot.
SUCCES! &Quot; " my enghlish is not so god but I hope u can find someone to translate.

Tiny
Gabrielnastase
Nov 2, 2009.

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