Help: VAG codes need decoding...
Thread Starter
Audiworld Senior Member
Joined: Aug 2000
Posts: 818
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Help: VAG codes need decoding...
Please help me decide what to do next...
My check engine light came on and stayed on for 2 days and then went away by itself.
Car drives OK. The VAG codes sound freaky tho, but my car seems ok to me. I can't tell if things are going to break in a month or so. What shall I do??
The VAG codes were:
16502- Engine coolant temp sensor (G62)
Signal too high
35-10 ---Intermittent
17929 - Intake Manifold Valve 2 (N261):
Electrical Failure
31-00 Open or Short to Gnd
17965 - Change Pressure Control Positive Deviation
35-10 ---Intermittent
My car is a 97 1.8TQA stock. 60k miles on it.
Thanks people.
Rgds,
Mike
mlhc@mbox.com.au
My check engine light came on and stayed on for 2 days and then went away by itself.
Car drives OK. The VAG codes sound freaky tho, but my car seems ok to me. I can't tell if things are going to break in a month or so. What shall I do??
The VAG codes were:
16502- Engine coolant temp sensor (G62)
Signal too high
35-10 ---Intermittent
17929 - Intake Manifold Valve 2 (N261):
Electrical Failure
31-00 Open or Short to Gnd
17965 - Change Pressure Control Positive Deviation
35-10 ---Intermittent
My car is a 97 1.8TQA stock. 60k miles on it.
Thanks people.
Rgds,
Mike
mlhc@mbox.com.au
AudiWorld Super User
Joined: Jul 2000
Posts: 4,072
Likes: 0
Re: Help: VAG codes need decoding...
The first one suggest someone maybe is wrong with your coolant sensor. I hear it's a cheap part. Around 5 bucks with gasket. Here's a link about that.
<a href="https://forums.audiworld.com/s4/msgs/842892.phtml">https://forums.audiworld.com/s4/msgs/842892.phtml</a>
The second one, I have no idea. I tried to do a quick look in the bentley and didn't see anything. [It's in there somewhere]. The bentley manual would be a great thing to pick up. As a troubleshooter.
And the third one suggests. Something is not right with your boost. Try running a block 114 and 115 and compare your requested vs your actual boost. And the duty of the n75 valve [boost frequency valve].
Here is another link that explain what the vag-com blocks are [must be registered software to be able to log blocks]
<a href="http://www.ross-tech.com/vag-com/m_blocks/">http://www.ross-tech.com/vag-com/m_blocks/</a>
I'm sure other will chime in, as the sun rises
jaime
<a href="https://forums.audiworld.com/s4/msgs/842892.phtml">https://forums.audiworld.com/s4/msgs/842892.phtml</a>
The second one, I have no idea. I tried to do a quick look in the bentley and didn't see anything. [It's in there somewhere]. The bentley manual would be a great thing to pick up. As a troubleshooter.
And the third one suggests. Something is not right with your boost. Try running a block 114 and 115 and compare your requested vs your actual boost. And the duty of the n75 valve [boost frequency valve].
Here is another link that explain what the vag-com blocks are [must be registered software to be able to log blocks]
<a href="http://www.ross-tech.com/vag-com/m_blocks/">http://www.ross-tech.com/vag-com/m_blocks/</a>
I'm sure other will chime in, as the sun rises
jaime
AudiWorld Senior Member
Joined: May 2000
Posts: 846
Likes: 0
From: Denver, CO
A little more info
My Coolant Temp Sensor was about $25 and like Jaime said, should take care of the first problem.
No clue about the second...
On the third, you won't be able to log actual vs. requested boost since you're non-DBW. If you've got a boost gauge, does your boost seem normal? You may want to just plunk down an additional $40 while you're at the dealership getting an ECT sensor and get yourself a new Bypass Valve... Both the ECT and the bypass valve are easy to install.
S.
No clue about the second...
On the third, you won't be able to log actual vs. requested boost since you're non-DBW. If you've got a boost gauge, does your boost seem normal? You may want to just plunk down an additional $40 while you're at the dealership getting an ECT sensor and get yourself a new Bypass Valve... Both the ECT and the bypass valve are easy to install.
S.
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