Quote:
Originally Posted by Cleme1995
Hi just an update as it's been a while. I've since changed coilpack and another icv just incase the last was faulty done the reset still the same
. However I've done a scan with a cheap ob scanner and these 2 codes came up
P1523 manufacturer control
P1327 manufacturer control
After researching one is a ivc solenoid malfunction ( no idea how to test and repair)
The other I'm not so sure. I've cleared and nothing has came back just yet however the rough idle etc still carries on being a nightmare
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P1523 appears to be ICV circuit malfunction.
I'm going to make a really dumb assumption that the 1.1 3 plug ECU is the same Bosch unit as my 16v ECU. Your ECU has 3 plugs, Brown, black and grey. They have numbers and letters to each plug to identify. The wiring colour can vary but they all have 4 digit identifications.
On the Grey 36 pin plug:
E3 goes to pin A on the ICV plug, should be a white wire (1244)
D2 goes to pin B on the ICV plug, should be a red wire (1245)
D3 goes to pin C on the ICV plug, should be a Yellow wire (1246)
D1 goes to pin D on the ICV plug, should be a Green wire (1247)
Use a thin piece of wire to put down the plug if your multimeter doesn't have the correct attachment, don't force a pin that's too big down there. The distance is small I would expect the resistance to be almost 0 ohms.
The ICV housing has to be cleaner than a laboratory, sometimes a bit of grease helps. Also non genuine ICV are problematic, I could only fix mine with a genuine item from the dealer
P1327 is phase detection from your coil pack, some scanners will say it is a camshaft sensor. Later models with the Bosch 3 plug ECU use the coil pack to detect the cylinder which has just fired so that it can run sequential fuel injection. The coil pack you have fitted is from an older model and isn't fully compatible. This shouldn't affect the idle, as the ECU will just run fuel injectors in batch.
the ICV learns itself very quickly, there's no reset procedure for it, don't force it into its housing