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Discussion Starter · #1 ·
Hi everyone,<p> I was wondering how much is involved in adjusting the timing on an '88 BF230. I've heard of folks doing the adjustments on the road as they ascend or descend significant altitudes (>4000') in order to compensate for the varying amount of time it takes to detonate the fuel, but I've never made the adjustment myself. Now I find myself wanting to be able to perform this all important adjustment as I live at 7000' which is apparently just beyond the normal range of operation. Thanks in advance!
 

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Re: Timing is everything (prancingmoose)

With all else in original working order the ignition timing should be set exactly to factory spec as the system can alter timing based on ECU input/output.<p>George Dill<p>
 

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Re: Timing is everything (gdill2)

Yeah that supports what the mechs are saying- basically if you drive in high altitudes, there is less of a window of tolerance for things to be out of spec. The crux of it is that they basically want a blank check to fix it, which obviously sends up a red flag. I guess we'll see. Thanks. <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0">
 

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Re: Timing is everything (prancingmoose)

Is the car running and driveable?<p>If yes, switch to highest octane fuel available and use an octane booster in combination with a fuel system cleaner.<p>Sure it's money in the wind but better than big bucks and still no fix.<p>I am thinking the intake system has leaks somewhere after the mass air meter.<p>George Dill<p>
 

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Re: Timing is everything (gdill2)

<A HREF="http://forums.swedespeed.com/zerothread?id=64632" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=64632</A><p>
 

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Discussion Starter · #6 ·
Re: Timing is everything (gdill2)

Unfortunately the car is on the blink. Most everyone I ask seems to have good ideas but none of them coincide so I've deciding, grudgingly, to let the shop do its tests. I checked out the reviews of the shop on NPR's car guys website and they scored about as high as possible which was consistent with what I've heard about them so... I'll post their findings when they're available to me, in about a week or so. At least for now I can think of it in terms of all the gas I've saved by not driving for two weeks. Thanks <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0">
 

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Re: Timing is everything (prancingmoose)

Once again, if the car's starter spins the engine per normal and the engine makes no indication of attempting to start try a NEW fuel pump relay.<p>George Dill<p>
 

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Re: Timing is everything (gdill2)

I just replaced it less than 6 mo ago. Also I found out that when the mechs took a look at the injectors, the car was flooded.
 

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Re: Timing is everything (prancingmoose)

Flooded indeed. Is there spark to the plugs?<p>George Dill<p>
 

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Re: Timing is everything (gdill2)

I would hope so, the plugs, and wires were replaced less than 6 mo. ago and it has been running smoothly ever since.
 

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The later model Volvos have a MAF and a MAS. These will auto compensate for density altitude and adjust your fuel as nessiary. One or both of these could be corrupt and need replacement. It could also be your O2 sensor as well.
 
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