Vr6 turbo problems

[delicate]

I have a 1995 GLX Jetta which I turbo over one year ago.I have a C2motoersport chip,36 pound injectors,a five bar ajustable pressure regulator I had a extra feul pump , C2 mass housing.i did every they said I should do and I can't get the car running.when I start the car it idle rich and when I go on boost I break up at 4000 rpm. It's my first time doing a turbo set up and being in Jamaica west indies every thing we need cost a arm & leg. I really need some help .

[d15nonvtec]

I have a 1995 GLX Jetta which I turbo over one year ago.I have a C2motoersport chip,36 pound injectors,a five bar ajustable pressure regulator I had a extra feul pump , C2 mass housing.i did every they said I should do and I can't get the car running.when I start the car it idle rich and when I go on boost I break up at 4000 rpm. It's my first time doing a turbo set up and being in Jamaica west indies every thing we need cost a arm & leg. I really need some help .

Why do you have a 5bar regulator? Isn't the stock one a 4bar for OBD1?

[delicate]

Why do you have a 5bar regulator? Isn't the stock one a 4bar for OBD1?

Yes it is but I was told I need to get the five bar

[d15nonvtec]

What turbo and what sort of boost you pushing here?

[delicate]

What turbo and what sort of boost you pushing here?

I have a t70 turbo and about 5lb boost

[delicate]

I have a t70 turbo and about 5lb boost

If this is ok with you just call my number and hang up and I will call you right and you can help me out wit your information (1876-406-1117).I would apricate it.

[d15nonvtec]

You should not need a 5bar reg at that boost level. I will assume you have older c2 software. If you called them recently the answers you get are hit and miss unfortunately. You should not need an inline pump either at 5lbs but it wont hurt to have it. I would swap to a 4bar, reset the ecu to start with.

Check your o2 sensors, check your MAF, look for issues with your intercooler tubes/couplings (if you have an intercooler)

[delicate]

Ok that I will do in the morning, as for the pluming what I should check for leaks? I have got a big enough inter cooler at the front and I also have a water injection system which I don't used yet.So in other words you are saying I should send the chip back to C2 for reprogram ing. My friend got a chip too for a 2.0 and having similar problem too and because we are so far away it cost a lot to send back the chip.i will try what you say and then see what happen and let you know.Thanks and as BOB MARLEY SAY ONE LOVE

[delicate]

I did ever thing you mention but the same thing is happening

[BonusParts]

Okay, so the car still idles rich and breaks up past 4K?

Is your CEL on? If so what codes does it give you?

Secondly, is this OBD1? If it is, i'd try this: DELETE your Idle stabilizer valve, and set your idle via the set screw on the throttle body itself. Also, test your TPS with an ohm meter, its called a sweep test. With leads on the pins that give you a resistance, have someone slowly press the pedal down. the reading should be linear between 0-100ohm.

One other suggestion would be to pull the ecu and remove the C2 chip. clean the board with compressed air, especially the socket and reseat the chip. I've heard AWFUL horror stories about C2 chips doing goofy **** like this and being nothing more than an improperly seated chip.

Good luck! VR-T

[JohnStamos]

What is your wideband reading when it breaks up?

What are your fuel trims long term and short term?



If you don't have a wide band, and can't log fuel trims/knock/ect, then you are guessing in the wind waiting for disaster, and there is no possible way for anyone to help you on here.


DON'T swap down to a 4bar reg, without knowing where you are sitting A/F wise, and being that the tuner told you the tune was made for 36lb injectors at 5 bar. That is the single worst troubleshooting advice for a FI setup you could give.

[delicate]

I just bought a wide band 02 on line I don't receive it yet but the check light is in the car and I don't have a a scan tool to see what's going on. I am really a hands on person so I am trying by best to follow all instruction.

[delicate]

I will try that but I have to get some help to walk me through it

[delicate]

You ask if my CEL is on what does CEL mean? My car is a obd1

[VW_MK3_270]

You ask if my CEL is on what does CEL mean? My car is a obd1

Check Engine Light.

[delicate]

Check Engine Light.

How do you tell the defference between 0bd1 and obd2

[brandon0808]

Where are you at right now with this issue? My vrt also breaks up at 4k