Search found 106 matches

by vasek
Thu Jul 28, 2022 1:36 pm
Forum: Diagnostic discussion
Topic: Citroen C3 cam vs crank fault engine timing is GOOD
Replies: 9
Views: 10056

Re: Citroen C3 cam vs crank fault engine timing is GOOD

Hello. . If there are serious errors in the engine management system, the velvetronic system is turned off. The electronic throttle system is activated. The engine starts working with discharge in the intake manifold. That's why there is a difference in compression. . Since both phase regulators hav...
by vasek
Thu Jul 28, 2022 12:23 pm
Forum: Diagnostic discussion
Topic: Mazda Axela 2.3 turbo -2007
Replies: 3
Views: 1955

Re: Mazda Axela 2.3 turbo -2007

Hello.
Here You go :
by vasek
Fri Feb 18, 2022 2:48 pm
Forum: Diagnostic discussion
Topic: Volvo s80 '06 B5244S, start, runs 2 sec then dies
Replies: 2
Views: 3237

Re: Volvo s80 '06 B5244S, start, runs 2 sec then dies

Hello.
The duration of the injector pulse after entering the idle mode is clearly underestimated .
Possible cause - leaky intake.
Or - incorrect readings of the air flow meter.
That's about how it should be with a hot start :
by vasek
Sat Oct 09, 2021 10:39 am
Forum: Diagnostic discussion
Topic: Ford Ranger cam code P1174
Replies: 10
Views: 21741

Re: Ford Ranger cam code P1174

Hello.
The code P1174 is not related to the crankshaft sensor - camshaft sensor pair.
The code is related to the need to reset the ECU adaptations.
Try resetting adaptations with the scanner.
by vasek
Tue Aug 31, 2021 10:26 am
Forum: Diagnostic discussion
Topic: Waveform for exhaust flap actuator 17 BMW 330i
Replies: 2
Views: 8793

Re: Waveform for exhaust flap actuator 17 BMW 330i

Hi.
The flap is controlled by a PWM signal.
The control is stepless.
PWM=5% closed, PWM=95% open.
So if you want to have an M-Bimmer for F30 ( :) ), you should apply PWM=95% control to the pin1 violet wire.
Forever and ever.))
by vasek
Fri Aug 27, 2021 8:29 pm
Forum: Diagnostic discussion
Topic: Volvo XC90 Drivability issues and communication fault codes
Replies: 4
Views: 5651

Re: Volvo XC90 Drivability issues and communication fault codes

Such a change in the signal on the CAN bus can trigger a pulse energy consumer of sufficient power. There is no such consumer in the ECU Gear selector module. In the ECU TCM - there are (electric valves). First of all, you should check again the reliability of the contact pin8 TCM, measure the volta...
by vasek
Thu Aug 26, 2021 6:36 pm
Forum: Diagnostic discussion
Topic: Volvo XC90 Drivability issues and communication fault codes
Replies: 4
Views: 5651

Re: Volvo XC90 Drivability issues and communication fault codes

Hi.
You need to determine which of the electronic components introduces distortion into the signal form.
To do this, you need to turn off the CAN POWERTRAIN ECU - one by one.
This can be done on the CEM module connectors C and D, or on the CAN 53/352 and 53/353 cross.
by vasek
Fri Apr 16, 2021 12:24 pm
Forum: Diagnostic discussion
Topic: Fiat Doblo non-starter
Replies: 6
Views: 6264

Re: Fiat Doblo non-starter

The fact is, that very often the timing of the injector at starter speeds ,differs from the timing at RPM idle and at medium speeds. You need to make sure ,that the actual position of the piston in the TDC ,matches the marks on the pulley. . You can look at it this way. The decrease in the amplitude...
by vasek
Thu Apr 15, 2021 7:54 pm
Forum: Diagnostic discussion
Topic: Fiat Doblo non-starter
Replies: 6
Views: 6264

Re: Fiat Doblo non-starter

Hi. The ignition timing is very late. Much later than the TDC. This is probably due to a mechanical shift of the reference disk. . The engine speed when rotating the starter is approximately RPM=120 , this is not enough. When the crankshaft rotates slowly, there is some difference between the actual...
by vasek
Mon Apr 12, 2021 7:55 am
Forum: Diagnostic discussion
Topic: Hyundai H1 does not start
Replies: 4
Views: 7223

Re: Hyundai H1 does not start

Examples of D4CB engine synchronization :
1 - your example
2 - engine with long running time,the chain is stretched
3 - new chain installed