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Re: bogging

SEAN GARRETT All Messages By This Member #84192 Update, as engine reached a good operating temperature, I experienced (city driving, stop and go) 3xtreme bucking, stalling at lights, surging low idle at lights, popping sound during acceleration between 1-2-3rd. ?~ Sean G On Tuesday, December 17, 2024 at 10:13:30 AM MST, SEAN GARRETT via groups.io <doit.outdoors@...> wrote: I have a Scan Gauge on my laptop. I can get live data while I drive. Is there anyone on the list that could tell me if any values /data I get could be suspect ? Like O2(pre cat), advance, etc… ?temp looks normal at 180…? I just drove it cold this morning, terrible lack of power/bogging throttle at light to medium pedal push. However aggressive pedal push would accelerate good, lots of power , felt like it should. ? Thats all for now? On Dec 17, 2024, at 8:21?AM, SEAN GARRETT via groups.io <doit.outdoors@...> wrote: ? Fuel pressure is unknown but pump is new 3 yrs ago and other cylinder spark plugs looked fine. MAP was replaced a yr ago with new. Fuel filter also replaced but worth checking do Ill put it on the list. Plug wires also replaced with oem last yr. The injectors were checked when new head was replaced 2 wks ago. .I have no codes that I haven’t had since original install in 2001 ( evap gas tank code and knock sensor). I know knock sensor has a short somewhere in the wire and I run 91 octane to avoid knocking. Note that I had 10 yrs of trouble free running with those codes. I think I will plan on running a new wire for knock sensor. I might pull the whole harness out and send it to SC along with ecu to have it checked. Uggggg SeanG? On Dec 16, 2024, at 5:40?PM, Robin Tapir via groups.io <robintapir@...> wrote: ? Was the lean condition that burnt a valve cured? Sounds like it might be related to this bogging? Is the fuel pump delivering enough pressure? When was the last time the fuel filter was replaced? The injectors could be clogged? Does your engine have a MAF or MAP sensor, with a MAF a vacuum leak will cause a lean condition It's very hard to diagnose an issue over the internet with minimal information, you might have to describe what it's doing in a bit more detail On Tue, 17 Dec 2024, 4:14?am SEAN GARRETT via , <doit.outdoors=[email protected]> wrote: I lost a valve on cyl 3. Big chunk out of it. My mechanic said it was due to lean running condition.? I have had a persistent bogging issue for almost 2 yrs and unable to solve it here in Phoenix. There are competent mechanics here but they can’t seem to find it. Also was discovered that alt was charging at 15v, took 2 alternators to get one charging at 14 max. AND the starter had a short in it /parasitic drain. So here i am tired of a van that sucks me dry (5600) for this repair… I need to get this bog issue fixed or sell my syncro. On Dec 15, 2024, at 5:22?PM, Brent Weide via <brent.weide=[email protected]> wrote: ?Hey Sean. Sadly, we can’t just point to one cause. My first choice (and easiest to resolve) would be the accelerator linkage.? Make sure everything’s moving smoothly and the cable is taut. If your engine is audibly gasping when accelerating then you’re into the area of checking for vacuum leaks, fuel delivery, and spark delivery. Are you getting any codes?? We might need a bit more information for this one. Best, Brent On Dec 15, 2024, at 1:29?PM, SEAN GARRETT via <doit.outdoors=[email protected]> wrote: What is bogging (at the pedal) caused by... rich or lean condition ? Sean G 87 Syncro, 2000 2.5 SC conversion

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#84192

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