A big problum?

[Mike1109]

Ok so one my stock boost gage stays at -7 when running and my cel stays on for about 5sec after I start my car then gos out. Not really sure what it is. Any sugestions? Its a 1g gst.

 

[LandoAWD]

The CEL is supposed to do that.

I'm assuming you're on the stock gauge, and when you aren't in boost you're in vacuum, so...

Fix your spelling/grammar.

 

[brian9397gsx]

CEL most likely a bulb check every car does that. Is there any drive ability concerns, other than being at -7?

 

[rollover-tsi]

First- i would get an aftermarket boost gauge. the stock one isnt an actual gauge, its just saying at what capacity your turbo is at. getting an aftermarket gauge will help you and others diagnose problems in the future.
Second- i dont think there is anything actually wrong with your car (without having more info). my talon did the same thing, turns out it was self adjusting the a/f ratio due to weather.

 

[richard33]

The CEL is supposed to do that.

I'm assuming you're on the stock gauge, and when you aren't in boost you're in vacuum, so...

Fix your spelling/grammar

Please. Unless you're in 3rd grade you should be able to spell problem.

 

[GRAVEDIGGER]

Two words.... NORMAL OPERATION

No need to worry, like the others have already said that's what it's supposed to do.

 

[2GbTalonGuy]

Seems like everything is normal.

 

[GRAVEDIGGER]

First- i would get an aftermarket boost gauge. the stock one isnt an actual gauge, its just saying at what capacity your turbo is at.

Yes, it is a good idea to get an aftermarket boost guage, but I wouldn't say that the stock one tells you what capacity the turbo is at. Think of it more as the stock guage being an electrical estimation by referencing load and airflow. An aftermarket guage is reading true boost/vacuum instead of an estimated guess.

 

[Mike1109]

I have an afteermarket one. Its only reading 5psi. When I do a blt I pressureized it to 20 but my autometter gage on the piller reads 15. I fixed a leak at the bov (its stock) and replaced the injector seals at the head had a nasty one their. I used soapy water but cant find anymore leaks.

 

[rollover-tsi]

Yes, it is a good idea to get an aftermarket boost guage, but I wouldn't say that the stock one tells you what capacity the turbo is at. Think of it more as the stock guage being an electrical estimation by referencing load and airflow. An aftermarket guage is reading true boost/vacuum instead of an estimated guess.

you are correct. just didnt feel like explaining it. thanks for picking up my slack

I have an afteermarket one. Its only reading 5psi. When I do a blt I pressureized it to 20 but my autometter gage on the piller reads 15. I fixed a leak at the bov (its stock) and replaced the injector seals at the head had a nasty one their. I used soapy water but cant find anymore leaks.

make sure the connector on the back of the gauge is tight, i did the same thing. also make sure the lines that are spliced for the gauge hose are clamped with worm clamps or zip ties or something, thats a common leak area

 

[GRAVEDIGGER]

I have an afteermarket one. Its only reading 5psi. When I do a blt I pressureized it to 20 but my autometter gage on the piller reads 15. I fixed a leak at the bov (its stock) and replaced the injector seals at the head had a nasty one their. I used soapy water but cant find anymore leaks.

When you are driving the car and in full boost what are you seeing on your autometer guage?

you are correct. just didnt feel like explaining it. thanks for picking up my slack

Ok, no problem man.

 

[Mike1109]

5psi full boost. Ill zip tie the gage lines and see if that helps to.

Ok so another blt came up with nothing so did a compression test, 1,3, and 4 where at 155 but number 2 was at 65. So I filled the cylinder with air and turns out the exhaust valves are leaking. I'm guessing this is the cause of my full boost being only 5psi. Gona replace the valves and all upper gaskets and hope that fixes my problem.