ECU problems
ECU: Engine Control Unit. It regulates all the aspects related to the engine's proper functioning.
Read more
Related problems:
See owner's manual
Top problems
ECU PIN out required 
Solved
Volkswagen Jetta 2003 1.8 Sedan 180000 miles
Looking for ECU pinouts ECU 0 261 204 024
2 reports
Best answer (according to Justyouritguy)
JU
Hi there, I have the pinout now needed to check the Hall sensor form the distributor as the car was changed from Carburetor to fuel injector.
Vote helpfulJU
Its a MP9 ECU that i was looking for but came right
Vote helpful
Comment1 report
Comment2021 vw jetta 1.4 tfsi No cranking
Volkswagen Jetta 2021 1.4 tsfi 63000 miles
Doesn't crank. All the fuses are good. Battery is good 12.6 volt. No cranking at all. I hooked up the ECU from another jetta, same result. Looks like whether immobilizer issue, or ignition switch, or ground wire.
4 reports
I get a fast clicking (dash lights flash in sync) with no motor turn.
Justyouritguy from South Africa 7 months ago
Have you tried checking the relay? I'm new to ecu's came from an IT and electronic background. Done a bit of mechanical work in my days.
CommentEngine fild
Volkswagen Jetta 2007 Body 286000 miles
Under heavy acceleration, when the RPM reaches 5,000, the car loses power and goes into limp mode. The EPC and Traction Control lights turn on. When this happens, the transmission stops shifting and jerks or stutters a few times. Note: The car originally had a 1.6L engine, but it has been swapped with a 2.0L engine. However, the original 1.6L ECU (Computer) and wiring harness have not been changed. "
1 report
I think what you thought you didn't need to do. You should have when you changed the engine. That's a tuff one to help with without taking a look and sticking it on a diagnostic machine. Keep reves at 4000 and get it to a mechanic.
CommentError flashing in the corner of the screen
Volkswagen Jetta 2005 2.5 MK5 47000000 miles
Correr says error flashing and at the top of screen flashing oil light and says stop oil pressure low and it won't start obd reader says secondary air flow relay I'm confused and have tried everything I can think of is it my ECU
3 reports
Capteur position jetta
Volkswagen Jetta 2016 AUTOMATIC 1.6 10000 miles
Les codes d'erreur que tu mentionnes sont généralement liés aux capteurs de la transmission et du moteur. Voici une explication rapide pour chacun :
P173C & P173B : Ces codes sont souvent associés aux transmissions automatiques, en particulier aux capteurs de pression hydraulique ou aux solénoïdes de transmission. Ils peuvent indiquer un problème de contrôle de pression ou un dysfonctionnement d'un capteur de position dans la boîte de vitesses.
P0841 : Ce code concerne un problème avec le capteur de pression de fluide de transmission (TFPS - Transmission Fluid Pressure Sensor). Il indique que la pression relevée ne correspond pas aux valeurs attendues par l'ECU.
P173C & P173B : Ces codes sont souvent associés aux transmissions automatiques, en particulier aux capteurs de pression hydraulique ou aux solénoïdes de transmission. Ils peuvent indiquer un problème de contrôle de pression ou un dysfonctionnement d'un capteur de position dans la boîte de vitesses.
P0841 : Ce code concerne un problème avec le capteur de pression de fluide de transmission (TFPS - Transmission Fluid Pressure Sensor). Il indique que la pression relevée ne correspond pas aux valeurs attendues par l'ECU.
3 reports
Problems with a Jetta? Share them
