Does anyone have any ideas what could be going wrong here?
10-02-2003, 09:39 PM
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Does anyone have any ideas what could be going wrong here?
I've been experiencing the misfires for a while now and I'm pretty sure that I just need to change my spark plugs to fix that(a new set of IK22's are on the way), but I just scanned my codes today because my car has been running very very poorly lately and now it shows I am getting knock too.. Any ideas on what could be causing this?
VAG-COM Version: Release 303.1
Control Module Part Number: 4B0 906 018 BG
Component and/or Version: 1.8L R4/5VT G 0006
Software Coding: 07001
Work Shop Code: WSC 40540
12 Faults Found:
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - - Intermittent
16685 - Cylinder 1 Misfire Detected
P0301 - 35-10 - - - Intermittent
16795 - Secondary Air Injection System: Incorrect Flow Detected
P0411 - 35-00 - -
16688 - Cylinder 4 Misfire Detected
P0304 - 35-10 - - - Intermittent
17735 - Knock-Control: Cylinder 3: Regulation Limit Exceeded
P1327 - 35-00 - -
16524 - Oxygen (Lambda) Sensor B1 S2: No Activity
P0140 - 35-00 - -
17733 - Knock-Control: Cylinder 1: Regulation Limit Exceeded
P1325 - 35-10 - - - Intermittent
17736 - Knock-Control: Cylinder 4: Regulation Limit Exceeded
P1328 - 35-10 - - - Intermittent
17734 - Knock-Control: Cylinder 2: Regulation Limit Exceeded
P1326 - 35-00 - -
16712 - Knock Sensor 1 (G61): Signal too High
P0328 - 35-10 - - - Intermittent
16717 - Knock Sensor 2 (G66): Signal too High
P0333 - 35-10 - - - Intermittent
16687 - Cylinder 3 Misfire Detected
P0303 - 35-10 - - - Intermittent
Are there any blocks I should log that would help out more or does anyone have an idea of what could be going wrong? Thanks for any help. BTW, the secondary air pump fault is because my smog pump was removed during my fmic install.
Steven H
VAG-COM Version: Release 303.1
Control Module Part Number: 4B0 906 018 BG
Component and/or Version: 1.8L R4/5VT G 0006
Software Coding: 07001
Work Shop Code: WSC 40540
12 Faults Found:
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - - Intermittent
16685 - Cylinder 1 Misfire Detected
P0301 - 35-10 - - - Intermittent
16795 - Secondary Air Injection System: Incorrect Flow Detected
P0411 - 35-00 - -
16688 - Cylinder 4 Misfire Detected
P0304 - 35-10 - - - Intermittent
17735 - Knock-Control: Cylinder 3: Regulation Limit Exceeded
P1327 - 35-00 - -
16524 - Oxygen (Lambda) Sensor B1 S2: No Activity
P0140 - 35-00 - -
17733 - Knock-Control: Cylinder 1: Regulation Limit Exceeded
P1325 - 35-10 - - - Intermittent
17736 - Knock-Control: Cylinder 4: Regulation Limit Exceeded
P1328 - 35-10 - - - Intermittent
17734 - Knock-Control: Cylinder 2: Regulation Limit Exceeded
P1326 - 35-00 - -
16712 - Knock Sensor 1 (G61): Signal too High
P0328 - 35-10 - - - Intermittent
16717 - Knock Sensor 2 (G66): Signal too High
P0333 - 35-10 - - - Intermittent
16687 - Cylinder 3 Misfire Detected
P0303 - 35-10 - - - Intermittent
Are there any blocks I should log that would help out more or does anyone have an idea of what could be going wrong? Thanks for any help. BTW, the secondary air pump fault is because my smog pump was removed during my fmic install.
Steven H
10-03-2003, 08:38 AM
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Not too sure about that being a problem with the two knock sensors. Strikes me as an awfully big
coincedence to lose both sensors at the same time.
I wonder if you are knocking (as well as misfiring) due to the plugs and/or perhaps a fuel issue .. running too lean. What are the fuel trims?
Do you not have the second o2 sensor plugged in?
I wonder if you are knocking (as well as misfiring) due to the plugs and/or perhaps a fuel issue .. running too lean. What are the fuel trims?
Do you not have the second o2 sensor plugged in?
10-03-2003, 09:44 AM
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The second O2 sensor is plugged in but I have no cat...
I haven't checked any of the fuel trims yet. What blocks should I log? I don't think it is running lean because I haven't changed anything in about 2 months and this is the first time I have seen the knocking codes.
10-03-2003, 09:57 AM
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I'd look at individual knock control cyl retard Block 020 to see if it is
at 12 degrees . .that would indicate the ECU is running out of dial back.
IIRC fuel trim is 032 or 033??
I think the second o2 sensor would throw a cat under efficiency code if it was simply a test pipe issue. The 'no activity' makes me think it or its connection, is gunny.
IIRC fuel trim is 032 or 033??
I think the second o2 sensor would throw a cat under efficiency code if it was simply a test pipe issue. The 'no activity' makes me think it or its connection, is gunny.
10-03-2003, 05:43 PM
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Did this start happening all of a sudden or has it been getting worse over time?
what level of boost? what kind of fuel? How old are you spark plugs that you have now? Have you taken one out and looked at it?
10-03-2003, 06:02 PM
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Doesn't matter if the B1S2 02 is bad...its just there for emmissions and has no effect on...
fuel trim. Mine has intermittant no activity since I installed the kit and I've had absolutely no problems with the car (knock on wood 
)
Something definitely funky is going on though. Get your new plugs, gap them correctly, and lets see an 02 sensor voltage log. Maf and timing correction would be nice to.
)Something definitely funky is going on though. Get your new plugs, gap them correctly, and lets see an 02 sensor voltage log. Maf and timing correction would be nice to.
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10-03-2003, 07:05 PM
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umm I get 16795 alot...its
ussually a boost leak, a bad diaphragm or leak from your dv...check all your hose conections..I dunno I tried NGK Iridiums and car ran like sheet after about a week. Based on advice from here, i have tried copper cheap NGKS..they work great. Ive got a stock AMU, with just a FMIC runnin 15psi. Any chance you have a bad carbon build up from running cheap gas? which is causing premature knock?
10-04-2003, 11:13 AM
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Re: Did this start happening all of a sudden or has it been getting worse over time?
I am running about 1.35 bar on 93 octane. I've never changed the plugs myself so I'm asuming they were changed the last time I had the car serviced(car has 28k miles). I haven't pulled one out yet to look at. I'll try to get to it later today.