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Discussion Starter #1 (Edited)
P0011 & P0013 - Error and fix 2.2 JTS Engine

I had this error and the Engine Management Light come up on my 2.2 JTS 159 Saloon this week just 90 miles after I completed a full service. It relates to a positioning diagnosis of the camshaft on the exhaust.

Instantly I'm thinking...... 'crap, here comes a new cam chain and balancer invoice'.

However the issue seems to be solved - thanks to friendly advice from Autolusso on the phone (I think it was Ned).

Cause: Essentially when I flushed the engine and topped it up the suggestion was that some crud may have interfered with the solenoid / sensors - the alternative is that I actually need a new cam chain. The fix? Give them a damn good clean. My Engine Management Light is now gone and the car seems to accelerate faster. Winning :thumbup:

Quick Guide.
This is an easy fix and requires the following tools and no mechanical experience
Tools: Socket Set, Long Nose Pliers

Step 1 Disconnect the battery.

Step 2 Remove the Engine cover (the red bit with Alfa Romeo across it) using 8mm socket. The bolts will not come all the way off the engine cover fully loosed them and then using the black end of the engine cover gently lift until it pops off the two fixings on the nearside.

Step 3 With the Engine cover removed undo the bolts that fix the coil pack to the rocker cover at the top of the engine. Once the bolts are fully removed gently lift the coil pack until it pops free of the spark plugs. There is no need to unplug the coil pack from the wiring loom.

Step 4 On the driver side of the rocker cover and in the same recess as the 4s park plug holes you will see two cylinders with wires connecting to sockets at the top of them these are the solenoids. Gently disconnect the wires and then unclip the loom from it's two fixings on the front of the rocker over so it is out of your way. Unbolt both the solenoids, and remove the bolts completely.
WARNING: The solenoids are not just the plastic bit on the top of the metal cylinder so do not try to separate the two.
Using your long nose pliers gently and with even pressure lift the solenoids from their seats free of the engine and place into a clean container with petrol in it.

Step 5 Clean the solenoids by letting the petrol break down any of the thick dark oil deposits that may have built up (mine had been in there fore 112000 miles. Once the deposits have cleaned through blow through hole at the end the loosed any particles that are sat in the three mesh collars on each solenoid. Re submerge in clean petrol.

Step 6 Inspect the sockets that you removed the solenoids from. It will be worth carefully cleaning any deposits from this area I used cotton wool buds with petrol on them. You do not want to take dirt back into the engine when you replace the solenoids, and you do not want to leave cleaning materials in the sockets.

Step 7 Replace the solenoids (Grey at the Bottom, Black at the top) and reassemble the other parts. Finally re-connect the battery.

Step 8 Start the car and hopefully the EML light will have disappeared. If not and still the same code consider replacing sensors and / or new cam chain.
 
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Yeah, I now got in the habit of cleaning them fairly regularly - they seem to be quite prone to clog.

Only one suggestion: you don't need to remove the coil pack at all to access the solenoids, all you need is a longish 10mm socket to reach the bolts.

Also, for cases where the solenoids need replacement, don't get shafted by the absurd Alfa spare price - the GM/Chevrolet/Pontiac spares are exactly the same, fit perfectly and work well; I replaced my intake solenoid with one ordered from a Chevrolet dealer in the US. They're easy to find on eBay, total cost including delivery and customs was 60$, around 50€, while the Alfa part is around the 110€ marker...

The part numbers are GM#12655420(intake) and GM#12655421(exhaust).
They are easy to find on eBay,
 

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I'd say that's the problem on most of these cars and people automatically think it's the chain. I'd only worrie about the chain when you hear the death rattle. It's a good guide for a sunday afternoon inspection.
 

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First time poster so go easy!
Just wanted to post a thank you for the advice re P0010 and P0011 error codes.

Three AR specialists had reccommended a cam chain replacement with costs varying depending on the recommended extent of replacement i.e. just chain or including variators replacement etc.
After reading this post and confirming the error codes only being 10 & 11 I cleaned the solenoids but after a day the EML was back on.
As recommended I purchased replacement GM parts from a dealership in Oregon, US (GM Intake & Exhaust Camshaft Position Actuator Solenoids), £56 for both intake and exhaust, £16 shipping, around 2 weeks for delivery.
That was 3 weeks ago, and so far so good, no EML and performance definitely improved.
 

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Discussion Starter #5
First time poster so go easy!
Just wanted to post a thank you for the advice re P0010 and P0011 error codes.

Three AR specialists had reccommended a cam chain replacement with costs varying depending on the recommended extent of replacement i.e. just chain or including variators replacement etc.
After reading this post and confirming the error codes only being 10 & 11 I cleaned the solenoids but after a day the EML was back on.
As recommended I purchased replacement GM parts from a dealership in Oregon, US (GM Intake & Exhaust Camshaft Position Actuator Solenoids), £56 for both intake and exhaust, £16 shipping, around 2 weeks for delivery.
That was 3 weeks ago, and so far so good, no EML and performance definitely improved.
Great stuff glad this helped. Really good forum and some of the other posts on here have saved me a packet!
 

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Hi,

I got the codes P0010 and P0011 from my last visit to local garage. They cleared the fault and told to come back if appears again. So it did but I got on the forum and luckily found advice that it might be just solenoids rather than timing chain replacement. The latter was done ca. 10k miles ago so I would be gutted to have to go through that repair again.

So I tried cleaning the solenoids as per guide and after fitting everything back together, I still got the warning light. Solenoids did not have much sludge, mostly oil.

Should the fault go automatically off on first restart or needs clearing? According to manual it engine warning light will stay on for next 4 engine starts even if all is fine.

Regards,
Wojciech
 

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I can confirm replacing solenoids works as a charm. The error code has gone and beed fine for few hundred miles now.

It seem that engine runs a bit smoother as well and fuel usage dropped slightly.
 
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