no boost
-
yellow_jacket
- Posts: 1355
- Joined: Mon Jan 13, 2003 4:43 pm
- Car: 95 240sx
Does the car feel just gutless? What makes you think it is not boosting?
Basically if you are not boosting at all you will have one gutless automobile. If you are not all that familiar with your car or with working on cars I would definetely suggest that you get a couple of guages to monitor your cars vitals.
Also, if you can hear the turbo spool, but you are loosing boost it is usually a leak in the piping or in the actual intercooler. You should have a vacuum line running to your wastegate and to your bov. Those will prevent overboosting for you.
Basically if you are not boosting at all you will have one gutless automobile. If you are not all that familiar with your car or with working on cars I would definetely suggest that you get a couple of guages to monitor your cars vitals.
Also, if you can hear the turbo spool, but you are loosing boost it is usually a leak in the piping or in the actual intercooler. You should have a vacuum line running to your wastegate and to your bov. Those will prevent overboosting for you.
-
Hijacker
- Posts: 14373
- Joined: Wed Aug 13, 2003 4:57 am
- Car: '92 240sx Convertible
'94 F-150 - Location: Fredericksburg, VA
a vacuum leak somewhere should produce a sluggish feeling in the turbo. the car should start to really pick up around 2500-3000 RPM's and rocket to 6500. I've had the wastegate actuator arm on my turbo pop off (i really need a new E-clip) and the turbo didn't spool. The car just felt flat lined the entire RPM band.
Now you say the turbo spools but there is no boost? Contradictory. Boost should be produced by a spooled turbo. Check the mounting bolts and make sure everything is tight and that all the gaskets are installed. A missing gasket can cause all sorts of weird problems and it's not on the top of a thought list because you never think of them
Now you say the turbo spools but there is no boost? Contradictory. Boost should be produced by a spooled turbo. Check the mounting bolts and make sure everything is tight and that all the gaskets are installed. A missing gasket can cause all sorts of weird problems and it's not on the top of a thought list because you never think of them
tenkawa_akito wrote:I have an excuse
I'm working on getting the A-pillar gauge to fit flush to my 'vert's A-pillar since it's different from a normal 240's a-pillar. that's my excuse for not having mine installed yet
thats no excuse i dont even have a ****ing pod for my boost gauge yet but I installed it. Its sitting in my a/c vent for now.
gema wrote:Lol, you guys are harsh. I mean...it is fairly retarded to complain about lack of boost while having no way to monitor it, but some people simply don't know what they're doing. What was the problem, though?
i take full responsibility for that. im serious and helpful if your not half retarded.
-
Hijacker
- Posts: 14373
- Joined: Wed Aug 13, 2003 4:57 am
- Car: '92 240sx Convertible
'94 F-150 - Location: Fredericksburg, VA
sgp180sx wrote:thats no excuse i dont even have a ****ing pod for my boost gauge yet but I installed it. Its sitting in my a/c vent for now.
one idea my friend and i were juggling with was blocking off the knuckle heaters and installing the guages there, but i'm just too fond of the A-pillar mounts. besides, i'm pulling stock boost right now and i believe i'm intelligent enough to know when something's wrong with my turbo
tenkawa_akito wrote:one idea my friend and i were juggling with was blocking off the knuckle heaters and installing the guages there, but i'm just too fond of the A-pillar mounts. besides, i'm pulling stock boost right now and i believe i'm intelligent enough to know when something's wrong with my turbo
yeah, I was just having problems with my wastegate and i was only hitting 4psi of boost, the boost gauge came in real handy for finding out what the hell was wrong with it.
Slidn', Man, your problem could be hard to diagnose. Take your time and start to backtrack and check EVERYTHING! Make sure all vac hoses are hooked up, no vacuum leaks. If you are sure of the timing, and the turbo is supplying air, then that eliminates those two things. Next are plugged injectors? Bad spark plug or plug wire? Engines need a few basic things to run right: air, fuel, ignition. The ECU needs to be monitoring and managing all the sensors as well. Keep looking for the culprit, don't give up. It's probably something simple, usually is. Good luck. Let us know what you find.