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Go Back   TDIClub Forums > VW TDI Discussion Areas > TDI Power Enhancements

TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old November 1st, 2017, 13:57   #1
KidFromAkron
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Default New tune, new problems

I installed the Malone tuning stage 2 on my 2010 jetta cr tdi six days ago. The car has seen regular scheduled maintenance by the dealer that I bought it from and has only 78,000 miles. While driving in normal stop and go traffic my glow plug light came on and started flashing. Car drove fine for the three miles till home then the check engine light came on just before killing the motor. The motor shuddered to a stop a little rough as well. Restarted and both lights still on. No limp mode as of yet. I called a local euro car specialist and he's going to scan it tomorrow morning. Anyone else see this with their new malone tune? Btw I'm new here and new to the upgrade world (at least on my dIesel).
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Old November 1st, 2017, 17:56   #2
travis45
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I'm going to go out on a limb and say your tune had nothing to do with it and your hpfp just took a sh!t.

Open up your fuel filter and look for metal shavings in the bottom.

You need to scan with VCDS to see what codes come up.
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Old November 1st, 2017, 17:58   #3
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If it is the hpfp the preferred fix is to upgrade to a CP3 pump.
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Last edited by travis45; November 1st, 2017 at 18:09.
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Old November 1st, 2017, 19:10   #4
KidFromAkron
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I thought that maybe the sensors had a tendency to take a dump from the changes. Just spitballing. Guess I'll find out tomorrow. Thanks for the reply.
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Old November 1st, 2017, 19:13   #5
travis45
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Check fuel filter housing. Scan for codes.
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Old November 4th, 2017, 08:19   #6
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Any luck? What did you find out?
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Old November 6th, 2017, 10:58   #7
KidFromAkron
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Scan showed intermittent TPS issue. By the time I took it to the shop the lights were out. they said bring it back if it starts again. There was no more rough stops when turning off the key but of course lights came back on and the rough stops are back. I'm assuming the problem is at the motor and not the throttle position sensor in the go pedal based on the rough stops. I'm almost due for my 80k mile service. I'll probably have it taken care of then. Any other suggestions?
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Old November 29th, 2017, 08:51   #9
KidFromAkron
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So after taking some time to decide how to best spend my money I finally broke down and took my car to a non-dealer vw specialist to get a definitive diagnosis. I was torn initially on whether to just spend the $200 and get a VAG-COM and then just do the work myself (if I can) or go to a specialist and have them use their diagnostics and willingly pay the mark up.

Basically for $55 the shop diagnosed what I suspected: I need to replace the EGR valve air regulator flap.

I plan on doing the work myself because in my research I've found that this fix seems well within my wheel house seeing as how I know lefty looses righty tightey. In researching the actual part I found dap.com to have the oem part for $360 and ECS tuning had it for $357 which was from continental. A few key strokes later I found the same serial number continental part on amazon for $253 with free shipping. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

With the money I save in part mark up and labor I plan on buying the ross tech VAG-COM to use later as I plan on getting at least another 200k miles out of my Jetta.

I'll post pics and updates of the work once the part comes in. Thanks again for following and helping with great input!
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Old November 29th, 2017, 09:50   #10
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Glad to hear you found a resolution, and as most here will say, "...If you own a VW you also need to own VCDS..." Or have a good relationship with someone that lives or works nearby where you live.
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Old November 29th, 2017, 09:53   #11
oilhammer
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Methinks the problem is not with one of the two EGR systems.
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Old December 1st, 2017, 16:29   #12
KidFromAkron
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Any thoughts on what it is Oilhammer?
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Old December 1st, 2017, 18:13   #13
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Quote:
Originally Posted by KidFromAkron View Post
Any thoughts on what it is Oilhammer?
What does Oilhammer charge for internet diagnostics?
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Old December 3rd, 2017, 18:59   #14
KidFromAkron
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Guess he gave what I paid.
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Old December 4th, 2017, 02:59   #15
oilhammer
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I would ask the tuner what mods were done to the EGR systems and see if they have any insight.
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