PimpJuice216
New member
I have a 1998 mk3 Jetta TDI and I want to do an EGR delete but am not at all sure on which kit is worth my money and will last. Does anyone have any suggestions?
EGR Delete Kits
- Thread starter PimpJuice216
- Start date
Mongler98
Top Post Dawg
- Joined
- Mar 23, 2011
- Location
- COLORADO (SE of Denver)
- TDI
- 98 Jetta TDI AHU 1.9L (944 TDI swap in progress) I moved so now i got nothing but an AHU in a garage on a pallet.
all you need is to remove the parts, put a bank of steel over the egr port on the manifold with a new gasket, and bypass the hoses with some copper pipe and pex fittings. do not use barbed. the 3/4 PEX fittings in brass are a perfect size. infact, if you want my kit i made, your welcome to it. the blank plate and the bypass fittings. i wont need them on my 944 build. $10 with plus shipping?
BTW, DO NOT clean the intake manifold unless your willing to spend another 4 hours cleaning the intake runners on the head. TRUST ME, you can and many have destroyed a perfectly good engine that way. Chucks flying off into the valves is bad mkay!
And honestly, fixing and repairing the EGR system is in your best interest seeing as you are in a place that has winters.
BTW, DO NOT clean the intake manifold unless your willing to spend another 4 hours cleaning the intake runners on the head. TRUST ME, you can and many have destroyed a perfectly good engine that way. Chucks flying off into the valves is bad mkay!
And honestly, fixing and repairing the EGR system is in your best interest seeing as you are in a place that has winters.
garciapiano
Veteran Member
Unfortunately, I don’t believe there is a plug and play kit for mk3s. I had to assemble my own.
It's simpler if you leave the stock intake in place. However, because the "EGR delete" on the mk3s doesn't actually delete the EGR valve and just deletes the cooler, you'll still have that restrictive butterfly valve and the poorer-flowing stock intake. The EGR valve is integral to the intake on the Mk3s, can't be removed by itself so you need a different intake manifold if you wish to remove it.
For my kit, I discarded the stock AHU/1Z intake manifold and used a smoother-flowing PD130 intake from a Passat, so my parts list is longer:
- PD130 intake from a longitudinal layout engine (so that it faces the correct way) Link with more info: https://forums.tdiclub.com/index.php?threads/pd130-pd150-intake-manifolds.248917/post-2592878
- New intake manifold gasket
- Race pipe to adapt between charge pipes and intake manifold
- Silicone intercooler hose / step-down 45° angle to connect to stock intercooler piping, with a matching hose clamp
- Coolant hose to adapt the heater hoses to the now-gone EGR cooler; (if you want OEM VW like me, it’s part number 1H0819371)
- 3/8" double-ended hose barb to adapt the coolant bottle to flange outlet water line (or just a new, complete run of hose)
- Small vacuum hose cap for theN75 Vacuum control solenoid (since it no longer needs to attach to the EGR Valve)
- Blanking cap and gasket for the exhaust manifold, with new copper nuts
- You'll also want a tuning chip to get rid of your EGR code check engine light since you'll now have that stored.
You'll also want, as Mongler mentioned, to clean the ports in the head if you decide to remove the stock intake manifold. it is a pain in the behind and takes forever, but it is necessary.
The result (I painted the manifold black for some reason):
The PD130 is a well-documented modification; while subtle, the car definitely breathes better. Spool time and throttle response are improved.
It's simpler if you leave the stock intake in place. However, because the "EGR delete" on the mk3s doesn't actually delete the EGR valve and just deletes the cooler, you'll still have that restrictive butterfly valve and the poorer-flowing stock intake. The EGR valve is integral to the intake on the Mk3s, can't be removed by itself so you need a different intake manifold if you wish to remove it.
For my kit, I discarded the stock AHU/1Z intake manifold and used a smoother-flowing PD130 intake from a Passat, so my parts list is longer:
- PD130 intake from a longitudinal layout engine (so that it faces the correct way) Link with more info: https://forums.tdiclub.com/index.php?threads/pd130-pd150-intake-manifolds.248917/post-2592878
- New intake manifold gasket
- Race pipe to adapt between charge pipes and intake manifold
- Silicone intercooler hose / step-down 45° angle to connect to stock intercooler piping, with a matching hose clamp
- Coolant hose to adapt the heater hoses to the now-gone EGR cooler; (if you want OEM VW like me, it’s part number 1H0819371)
- 3/8" double-ended hose barb to adapt the coolant bottle to flange outlet water line (or just a new, complete run of hose)
- Small vacuum hose cap for the
- Blanking cap and gasket for the exhaust manifold, with new copper nuts
- You'll also want a tuning chip to get rid of your EGR code check engine light since you'll now have that stored.
You'll also want, as Mongler mentioned, to clean the ports in the head if you decide to remove the stock intake manifold. it is a pain in the behind and takes forever, but it is necessary.
The result (I painted the manifold black for some reason):
The PD130 is a well-documented modification; while subtle, the car definitely breathes better. Spool time and throttle response are improved.
Last edited:
Mongler98
Top Post Dawg
- Joined
- Mar 23, 2011
- Location
- COLORADO (SE of Denver)
- TDI
- 98 Jetta TDI AHU 1.9L (944 TDI swap in progress) I moved so now i got nothing but an AHU in a garage on a pallet.
the n75 has NOTHING to do with the EGR. do not disconnect any of that. you want to delete the entire EGR controller by plugging the line from the vacuum pump to it! not the n75
garciapiano
Veteran Member
Correct! My mistake. It has been a while since I tinkered with either of those. For some reason, I thought they were integrated into one unit. They do look somewhat physically similar. The vacuum control valve is separate from the N75. But yes, you will need to cap off that port on the vacuum controller if you decide to delete the EGR itself.
Last edited:
Mongler98
Top Post Dawg
- Joined
- Mar 23, 2011
- Location
- COLORADO (SE of Denver)
- TDI
- 98 Jetta TDI AHU 1.9L (944 TDI swap in progress) I moved so now i got nothing but an AHU in a garage on a pallet.
See the problem with egr deletes is it causes more issues than it solves.
A car that takes even longer to warm up or even have heat in the winter, most states will require an inspection for emissions and it will fail and you will always have a check engine light unless you spend $300 on a tune to delete it. It's a bunch of work for nothing gained.
A car that takes even longer to warm up or even have heat in the winter, most states will require an inspection for emissions and it will fail and you will always have a check engine light unless you spend $300 on a tune to delete it. It's a bunch of work for nothing gained.
CasaEd
Veteran Member
- Joined
- Mar 18, 2017
- Location
- Portugal
- TDI
- VW Passat TDi B4, VW Passat TDi B4 GL, VW Passat B3 PD AWX Conversion
The gain from an EGR delete is a longer engine life, re-burning burnt exhaust gas shortens the engines life considerably and you don't get that build up of crud in the intake manifold and head inlet tracks.