Disconnected BCS...Slight Increase in Boost....Now what? Reply #15 – June 18, 2007, 02:33:02 PM Yes, it's connected. How would I go about checking the "Wastegate" to see if it's stuck open? Also, how can I check to see if the blades in the turbo are hitting the housing? I ask this because at low speeds when I engage the Turbo just briefly, after letting out of the throttle, I've always heard this fluttering noise. It only lasts for a few seconds, but it sound like when you stick a piece of paper into a fan while it's on. A flicking noise, but very briefly. I always thought that was the Turbo Impeller hitting something. Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #16 – June 18, 2007, 02:38:00 PM I say for the pinging its the gas I had the same sound from my 92 Lincoln I put 89 in it instead of 87 and it almost dissapeared put hi test in and the pinging went away. I have been since using 87 again but i have no exhaust from the cats back so its loud enuff to quiet the pinging. Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #17 – June 18, 2007, 02:40:23 PM You will find the knock sensor in the lower intake. It may or may not be pointing towards the driver's side strut tower. The previous owner may have unplugged it. From what I've read, unplugging it will prevent the computer from sensing any knock/ping, therefore it won't pull timing.I'm not 100% on that, though. Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #18 – June 18, 2007, 02:48:23 PM Quote from: DMC24guy;155251Yes, it's connected. How would I go about checking the "Wastegate" to see if it's stuck open? Also, how can I check to see if the blades in the turbo are hitting the housing? I ask this because at low speeds when I engage the Turbo just briefly, after letting out of the throttle, I've always heard this fluttering noise. It only lasts for a few seconds, but it sound like when you stick a piece of paper into a fan while it's on. A flicking noise, but very briefly. I always thought that was the Turbo Impeller hitting something.Kind of hard to check w/o taking the turbo elbow off and visually inspecting the WG flapper. On the IHI turbo the flapper arm is not in the outlet elbow like the T-3, so you can see it with the elbow off.. You can also remove the c-clip from the WGA arm that controls the flapper and see if it's too "long". Ideally you should have to pull the arm out to connect it to the flapper arm, or put a little air pressure on the WGA to move the arm "out" to engine the flaooer arm. If it just slides on w/ any force, or the flapper arm moves closer to the WGA once disconnected, the arm is holding it open when it thinks it's "closed", thus bleeding boost.On the pinging, again try a tank of mid-grade gas.....see what happens. Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #19 – June 18, 2007, 02:49:33 PM Quote from: cougarcragar;155253You will find the knock sensor in the lower intake. It may or may not be pointing towards the driver's side strut tower. The previous owner may have unplugged it. From what I've read, unplugging it will prevent the computer from sensing any knock/ping, therefore it won't pull timing.I'm not 100% on that, though.The KS will also interpret any stray engine noise as "detonation"....and pull timing. I stopped using one, kept pulling timing due to valvetrain noise. Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #20 – June 18, 2007, 02:50:38 PM Also, I should mention that I physically pryed open the EGR valve with a Screwdriver while at idle and the engine didn't do anything. Didn't really stumbled, and did not stall out. Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #21 – June 18, 2007, 03:09:46 PM +3 on Fuel Octane upgrade. Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #22 – June 18, 2007, 04:05:23 PM All that's going to tell me is that the Compression Ratio has gone up, as in... EGR exhaust ports are clogged, and after SeaFoaming the engine last week....I'd be a bit confused. Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #23 – June 18, 2007, 05:30:40 PM If it's really carboned up to raise your compression that much,you may need more than sea foam.I might of missed it but did you try higher octane? Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #24 – June 18, 2007, 05:38:41 PM Quote from: kitzdnm;155284I might of missed it but did you try higher octane?No he hasn't....he just likes to argue when folks give him ideas.How many miles does the car have? Lots if I recall....Just try it... Like I said, it's what $2-3 extra per tank? Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #25 – June 18, 2007, 05:47:12 PM Even a can of octane boost might give him an answer? Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #26 – June 18, 2007, 06:08:27 PM Quote from: DMC24guy;155256Also, I should mention that I physically pryed open the EGR valve with a Screwdriver while at idle and the engine didn't do anything. Didn't really stumbled, and did not stall out.Sounds like you have found part of your problem. Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #27 – June 18, 2007, 07:55:05 PM The EGR is good, I think the exhaust ports inside the Upper Intake manifold might be clogged though. The thing is, I used SeaFoam last week, so I can't imagine there being that much more to clean out. Is there anyway besides taking off the Upper Intake that I can clean out those ports? Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #28 – June 18, 2007, 07:59:00 PM Quote from: DMC24guy;155300The EGR is good, I think the exhaust ports inside the Upper Intake manifold might be clogged though. The thing is, I used SeaFoam last week, so I can't imagine there being that much more to clean out. Is there anyway besides taking off the Upper Intake that I can clean out those ports?The egr isnt good if your not seeing some change in the way the car runs manually opening it something is stopped up!seafoam isnt much more then pale oil and some petrol dissilates it dont work miracals. But does make for a neat smoke show. Quote Selected
Disconnected BCS...Slight Increase in Boost....Now what? Reply #29 – June 18, 2007, 08:01:01 PM That doesn't mean the EGR is clogged. I replaced the Lower Part of the Valve a couple months back, and when I did, I made sure to clean the heck out of it. Quote Selected
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