Foutcodes uitlezen.
Ga, om de opgeslagen foutcodes uit te lezen, als volgt te werk:
Zet het contact op KPII, de "run" positie.
De foutcodes zullen worden weergegeven na een korte druk (ong. 1 seconde)op de testknop.
Als de LED de knipper-code 1-1-1 weergeeft, betekent dit dat er geen fouten zijn gedetecteerd.
Als er een fout in het systeem zit, zal de LED de foutcode weergeven, die kan worden teruggevonden in de tabel hieronder. De knippercodes worden mogelijk met tussenpozen van 2 seconden weergegeven, dus codeblok 1, dan 2 sec uit, volgende codeblok.
De eventuele volgende knippercodes kunnen worden weergegeven door bovenstaand te herhalen, totdat de code 1-1-1 weer wordt weergegeven.
Kijk in de tabel en herstel het probleem. Voer de tests na het wissen van de codes (en een korte proefrit) opnieuw uit, om te zien of het daadwerkelijk is opgelost.
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Foutcodes wissen.
De foutcodes kunnen alleen worden gewist als ze allemaal zijn weergegeven door de LED door middel van knippercodes en de eerste code minstens 1 keer is herhaalt. Je zult dus alle codes moeten doorlopen, wat op zich niet erg is.
Ga, om de opgeslagen foutcodes te wissen, als volgt te werk:
Waarschuwing! De foutcodes moeten worden gewist zonder dat de motor draait, anders kan de werking van de procedure niet worden gegarandeerd.
Zet het contact op KPII, de "run" positie.
Druk op de testknop en houd deze voor minstens 5 seconden vast.
Wacht tot de LED oplicht.
Druk voor de LED uitgaat, wederom voor minstens 5 seconden op de testknop.
Zet het contact af en haal de sleutel ook uit het contact
Zet de auto eerst op contact en start na ten minste 3 seconden pas de motor.
Alle opgeslagen foutcodes zullen nu zijn gewist uit de Jetronic LH2.4 computer.
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Foutcode tabel LH 2.4 brandstofinjectie systeem
1-1-1 Geen foutcode gedetecteerd
1-1-2 Controle module ontbreekt of is onbetrouwbaar of geeft onvolledig signaal.
1-1-3 Brandstofregeling, kort, onvolledig controle
1-2-1 Luchtmassameter (LMM), onvolledig of ontbrekend signaal
1-2-3 Motortemperatuursensor geeft verkeerd of onvolledig signaal
1-3-1 Motortoerentalsensor krijgt geen signaal van het onstekingssysteem, signaal mist
1-3-2 Batterijspanning, onvolledig of ontbrekend signaal
1-3-3 Gaspositiesensorschakelaar bij stationair, onvolledig of ontbrekend signaal
2-1-2 Verwarmde temperatuursensor (Ho2sensor), onvolledig of ontbrekend signaal
2-1-3 Gaspositiesensorschakelaar bij vollast, onvolledig of ontbrekend signaal
2-2-1 Brandstofregeling, lang, deellast, te arm mengsel
2-2-3 Stationnairregeling (IAC) klep-singaal controleren
2-3-1 Brandstofregeling, lang, deellast
2-3-2 Brandstofregeling, lang, stationair
3-1-1 Voertuigsnelheidsignaal , onvolledig of ontbrekend signaal
3-1-2 klop-signaal afkomstig van het ontstekingssysteem, onvolledig of ontbrekend signaal
3-2-2 Luchtmassameter (LMM) controleer signaal/stekers
3-4-4 Uitlaatgastemperatuursensor, controleer signaal
Deze foutcodes kunnen worden uitgelezen met behulp van de OBD-tester, zie hieronder:
(zelfbouw door diverse verenigingsleden)
Onderstaand een Engelstalig overzicht met foutcodes inclusief Motronic 1.8 en Regina
Table 1: Bosch LH2.4 and Motronic 1.8 Fuel Injection Fault Codes (* denotes Check Engine lamp goes on).
Where the Motronic 1.8 codes are different from LH 2.4, the differences are shown in blue italic. Read these from socket 2. See below for Regina fuel injection codes.
| Fault Codes | LH 2.4 Fault Condition | LH 2.4 Causes of Fault | LH 2.4 Symptoms | Motronic 1.8 Fault Condition | Motronic 1.8 Causes of Fault |
|---|---|---|---|---|---|
| 1-1-1 | No faults | N/a | N/a | Same | Same |
| 1-1-2 | Fault in FI control unit | FI module fault | None | Same | Same |
| 1-1-3* | Fuel trim (lambda control) too lean or rich | Mixture incorrect; O2S wiring fault | High fuel consumption | Fault in Injector 1,2,4 | Fuel Injector |
| 1-1-5 | Not applicable | NA | NA | Fault in Injector 3,5,6 | Fuel Injector |
| 1-2-1* | Faulty signal to/from Air Mass Meter | Wiring fault to or in AMM | Various driving problems; fuel consumption | Same | Same |
| 1-2-3* | Signal missing to/from coolant temp. sensor | Wiring fault to or in ECT sensor;grounds corroded on intake manifold or engine | Difficult to start engine when cold | Same | Same |
| 1-3-1 | Ignition system RPM signal missing on starting | Wiring fault or RPM sensor bad | Engine will not start | Same | Same |
| 1-3-2 | Battery voltage too low/high | Poor battery or charging system | No faults evident | Same | Same |
| 1-3-3 | Throttle switch idle setting faulty or grounding fault | TPS failure or maladjusted | Above-normal idle speed | Same | Same |
| 1-4-3 | Not applicable | NA | NA | Front knock sensor signal missing or faulty | Front Knock sensor |
| 2-1-2* | Signal missing/faulty from oxygen sensor | Wiring fault to heated O2S sensor | High fuel consumption, driving problems | Same | Same |
| 2-1-3 | Throttle switch full load setting faulty or grounding short | Wiring fault to TPS or TPS failure | No faults evident | Same | Same |
| 2-1-4 | Not applicable | NA | NA | Ignition system RPM signal missing sporadically | Wiring fault or RPM sensor |
| 2-2-1* | Fuel trim (lambda control) too lean at part load | Lean; air leak; low fuel pressure; bad AMM | Engine stops when starting from cold; high fuel use | Same | Same |
| 2-2-3 | Signal missing to/from idle air control valve | Circuit fault to IAC or faulty IAC valve | Engine difficult to start; low idle speed | Same | Same |
| 2-3-1* | Fuel trim (lambda control) too lean or too rich at part load | }If too lean: air leaks, low fuel pressure, bad sensor | }Engine stops when starting from cold; high fuel use or | Fuel trim (lambda control) too rich at part load | Oxygen sensor |
| 2-3-2* | Fuel trim (lambda control) too lean or too rich at idle | }If too rich: high fuel press., leaking injector | } various driving problems | Fuel trim (lambda control) too lean at idle | Oxygen sensor |
| 2-3-3 | Not applicable | NA | NA | Idle control outside range | Idle speed control |
| 2-4-1 | Not applicable | NA | NA | EGR system flow too low | EGR vacuum booster |
| 2-4-3 | Not applicable | NA | NA | TPS throttle switch signal absent or faulty | Throttle position switch (TPS) |
| 3-1-1 | Signal missing from speedometer | Speedo wiring or instrument cluster wiring faulty | Idling problems | Same | Same |
| 3-1-2 | Signal missing for knock-related fuel enrichment | Wiring break between EZK terminal 4 and FI #28 | No faults evident | Same | Same |
| 3-1-4 | Not applicable | NA | NA | CMP camshaft sensor signal absent or faulty | Camshaft position sensor (CMP) |
| 3-2-1 | Cold-start injector signal shorted or missing | Wiring break to cold-start injector or fault in injector | Cold-start problems | Same | Same |
| 3-2-2 | Air Mass Meter wire burn-off signal absent or faulty | Wiring break between FI terminal 8 and AMM #4 | Various driving problems due to dirty AMM wire | Same | Same |
| 3-4-4 | EGR temperature signal absent or faulty | Wiring break or fault in sensor | B 204 FT/GT engines only | Same | Same |
| 4-1-3 | Not applicable | NA | NA | EGR temperature sensor signal missing or faulty | EFG temperature sensor |
| 4-3-3 | Not applicable | NA | NA | Rear knock sensor signal missing or faulty | Rear Knock sensor |
Table 2: EZK 116 and Regina Rex Ignition Fault Codes (* denotes Check Engine lamp goes on)
(REX 1 ignition system codes are shown in italic.) Read these from socket 6:
| Fault Codes | Fault Condition | Causes of Fault | Symptoms |
|---|---|---|---|
| 1-1-1 | No fault detected | N/a | N/a |
| 1-4-2* | Control module fault | EZK ignition control module faulty | Engine runs in limp-home mode |
| 1-4-3* | Knock sensor signal absent or faulty | Faulty wiring to/from/in the knock sensor | Poor acceleration, low power, high fuel cons. |
| 1-4-4* | No load signal from fuel injection system | Bad fuel injection relay; faulty wiring from LH to EZK; bad LH module | Engine lacks power; stalls; doesn't start or is jerky |
| 1-5-4* | EGR system flow too high | Faulty EGR valve or controller, wiring; engine thermostat | Engine idles unevenly |
| 2-1-4 | RPM sensor signal absent intermittently | Faulty RPM sensor, wiring or incorrect installation | Engine will not start; runs rough; overheats |
| 2-2-4 | Engine coolant temp (ECT) sensor signal absent or faulty | Faulty wiring or ECT sensor | No fault symptoms evident |
| 2-3-4 | Throttle Position Switch (TPS) idle signal faulty | Faulty wiring or TPS; TPS adjusted incorrectly | Poor hot starting; poor idling; limp-home operation |
| 2-4-1* | EGR system flow too low | Faulty wiring, EGR, EGR vacuum or controller; EGR temp sensor | Poor idling |
| 4-1-3* | EGR temperature sensor signal faulty or absent | Faulty EGR temp sensor or wiring | No fault symptoms evident |
| 3-3-4 | Throttle Position Switch (TPS) in idle position (REX 1 only) | Faulty wiring or TPS; TPS adjusted incorrectly | --- |
Table 3: Regina Fuel Injection Fault Codes. Read these from socket 2:
| Fault Codes | Fault Condition | Source of Fault |
|---|---|---|
| 1-1-1 | No faults | --- |
| 1-1-2 | Fault in control unit | FI control unit |
| 1-1-3 | Fault in injector | Fuel injector |
| 1-2-1 | Signal missing or faulty to/from pressure sensor | MAP Pressure sensor |
| 1-2-2 | Signal missing or faulty to/from air temperature sensor | Air temperature sensor |
| 1-2-3 | Signal missing or faulty to/from coolant temperature sensor, possible grounding short | ECT Coolant temperature sensor |
| 1-3-2 | Battery voltage too high/low | Check battery and charging system |
| 1-3-3 | Throttle switch: idle setting faulty, possible grounding short | TPS Throttle switch |
| 2-1-2 | Oxygen sensor signal missing or faulty | Oxygen sensor |
| 2-1-3 | Throttle switch: full load setting faulty; possible grounding short | TPS Throttle switch |
| 2-2-1 | Oxygen sensor not operating | Oxygen sensor or intake air leak |
| 2-2-2 | Fault in fuel injection relay | Fuel injection relay |
| 2-2-3 | Signal missing to/from idle valve | IAC Idle air control valve |
| 2-3-1 | Self-adjusting oxygen sensor not operating | Intake air or fuel system |
| 2-3-2 | Self-adjusting oxygen sensor not operating | Intake air or fuel system |
| 2-3-3 | Idle valve closed | IAC Idle air control valve |
| 2-4-1 | EGR system malfunction (California cars) | EGR vacuum booster |
| 3-1-1 | Signal missing from speedometer | Speedometer signal |
| 3-2-1 | Signal missing to/from cold start valve | Radio suppression relay |
| 4-1-3 | EGR temperature sensor circuit (California cars) | EGR temperature sensor |
