P1345 and TDC

P1345 and TDC

Postby coult45 [OP] » March 3rd 2014, 2:39am

Hi,

Just had the glorious experience of removing the doghouse engine cover. I have a P1345 code, but my check engine dash light is out. Not sure if the previous owner did this on purpose or not... also, i've never worked on a distributor, i have very basic car knowledge (coming from a subaru)

In theback of the van I found two boxes labeled BWD engine management boxes, one said rotor and not sure on the other, I will check later. After pulling the engine cover, the cap and rotor (i think) look very new.

I watched this video http://www.youtube.com/watch?v=LOR-9JZUUI0

and I believe the code is happening because the new rotor/cap may not be set correctly. I cleared the code and it comes back as soon as I turn on the car.

My question here is, how do I find TDC. I google'd this fast, and found that I may need to mess with the sparkplugs, valves or something else.

I saw you can do something with the harmonic balancer, but this is wayyy down low in the van, behind the huge fan shroud. Do i remove this shroud? and radiator?


how bad is it that this part isn't setup right. I need to get my coolant flushed and some tires, and I hope to take her on a nice 800 mile roundtrip. Is this a bad idea? Any help with the p1345 and checking TDC would be great.


Thanks, Ash
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Re: P1345 and TDC

Postby coult45 [OP] » March 9th 2014, 8:19pm

incase anyone ever searches for this. I figured it out.

To find top dead center, i removed the upper fan shroud. From there, I used a large 36mm wrench (rented from Oreillys as the Fan Clutch tool) and used that to turn the fan clockwise. This also turned the engine. I could barely see the TDC marks on the harmonic balancer.

Then I removed the distributor and set the correct timing using the video link above and this picture half way down the page to get the timing just right

http://autorepair.about.com/library/a/1a/bl340a.htm


The first time I did this, i went to start the engine and all i heard was the sparks firing. Didn't want to start.

I assumed I had set the TDC to the exhaust, and not the compression stroke.

So after turning the fan again to TDC, I looked back at the distributor and the rotor was 180 degrees from the last time I set it. So i reset it to the right spot. Buttoned her back up and she fired first time.

Code is cleared and hasn't come back.

Just thought I'd post my results. Thanks astrosafari, this site is awesome!
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Re: P1345 and TDC

Postby coult45 [OP] » April 16th 2014, 10:05pm

Since my last post, no p1345 code. i checked my cmp retard with a fancy software i got, i was pulling 4.9° to 5.1°. so i loosened the hold down bolt, played with the distributor a bit while reading values. closest I've gotten is 4.4°, the manual is looking for -2 to +2. am i one tooth off, or would that drastically change the degree values?
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Re: P1345 and TDC

Postby norohs » April 17th 2014, 1:18am

One tooth off should be a far greater error. Maybe worn cam gear (hopefully on the distributor shaft) or a stretched timing chain. Those aftermarket boxes from BWD might have something to do with it too.
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Re: P1345 and TDC

Postby redfury » April 17th 2014, 6:31am

I wouldn't worry too much about it. If your software can do it, look at your current misfire counts for each cylinder. They should be zero or low numbers. IF they are in the hundreds or thousands, then you need to worry about fixing the root cause. A few minor misfires aren't going to cause you trouble ( misfires being minor, not major misfires..more like hiccups you can't feel, nor would be enough to set a code ).
A temporary fix usually becomes a permanent solution, therefore it does not exist.
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Re: P1345 and TDC

Postby coult45 [OP] » April 22nd 2014, 5:52am

redfury wrote:I wouldn't worry too much about it. If your software can do it, look at your current misfire counts for each cylinder. They should be zero or low numbers. IF they are in the hundreds or thousands, then you need to worry about fixing the root cause. A few minor misfires aren't going to cause you trouble ( misfires being minor, not major misfires..more like hiccups you can't feel, nor would be enough to set a code ).


so theres a small hiccup I can feel in my van. But after driving it around for two 5 minute trips, i've recorded 10 misfires total in one trip and 4 in the other. cylinder #1 has the most misfires, while 2, 3, and 5? have one or two. seems to be small numbers. Im assuming the van has very old plugs and wires as Its new to me and I'm finding lots of stock parts. These misfires are irrelevant eh?

once again, still at -4 degrees on the CMP retard
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Re: P1345 and TDC

Postby jrsride2002 » January 13th 2016, 3:56pm

Hey guys,
Im bringing this topic back because, I replaced my distributor over the weekend. Now I am getting the P1345. Engine starts(sometimes rougher then other times), she drives like normal, but I have noticed a slight decrease in MPG based on the HUD Inst Econ(2 to 4mpg). I have a basic OBD2 scanner, and I am reading a advancement of 23 degrees while idle and 32 at about 1200(ish) RPMs. I am wondering if I am one tooth off, of if I just have to get the ECU to relearn the timing(read that in another topic)?

Thanks for the help,
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Re: P1345 and TDC

Postby kenk » January 13th 2016, 5:05pm

make sure you didnt use too long of screws in the rotor, i found that out the hard way, the long screws scraped across the cam sensor, and destroyed it, van still ran, rough sometimes, mileage went down and 345 code
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Re: P1345 and TDC

Postby Leeann_93 » January 13th 2016, 11:56pm

Good thread on P1345:
viewtopic.php?f=43&t=11456

Basically, it sounds like you're a tooth off.
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Re: P1345 and TDC

Postby jrsride2002 » January 14th 2016, 3:41am

Leeann_93 wrote:Basically, it sounds like you're a tooth off.

Thanks for the link Leeann

I just hate having to do it over again. "IF" I do it correctly, would I still have to get the system to relearn the timing like I have read on other posts? I can clear the code, just can't change the timing with my scanner.

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Re: P1345 and TDC

Postby Leeann_93 » January 14th 2016, 4:18am

Since I haven't done it yet, I dunno.

That's the plan for this weekend. I do have a Tech II, though, so I'll do the relearn.
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Re: P1345 and TDC

Postby jrsride2002 » January 15th 2016, 1:31am

Leeann_93 wrote:Since I haven't done it yet, I dunno.

That's the plan for this weekend. I do have a Tech II, though, so I'll do the relearn.

Thanks again Leann!

Well, i'm just going to just do the job again. Without doing the relearn, and see what happens. I'm also going to do it on the weekend. Since the VW is still in the shop, I have to rely on just the van. It runs, it drives, we'll tinker when I don't need to drive to work.

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Re: P1345 and TDC

Postby jrsride2002 » January 17th 2016, 5:39pm

OK, so I cleared the codes before I pulled the dist.

The task went well, except for seeing around the giant water pump for the timing marks... :doh:

Got her back together, fired her up, and we are back to smooth sailing! :banana:
I still have to put a few miles on her, because I cleared the codes. I want to make sure, I am not hiding any other issues. But I think everything will go well now.

Have not gone to a shop to relearn the timing. Just by feel, I don't think I will need to. She really feels like she should, and (I don't know for sure)I don't think I will need to. The dist. is right back where it should be, so I don't think I will need to learn it all over.

Leeann_93 wrote:...I dunno

Never thought I would hear this coming from you :shock: :shock: :shock:
End times are before us now.... :P

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Re: P1345 and TDC

Postby Leeann_93 » January 17th 2016, 5:50pm

Hey, if I dunno, I'm gonna say I dunno!

Since I've never had to do it, I really dunno :o


And it's snowing, so I doubt I'm putting my dist in today.... :shock:
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