

| Subject: | LP tank and Skylight |
| From: | Joseph Seitz |
| Date: | Thu, 10 Jun 1999 16:19:33 -0500 |
Hello all. I am looking for a LP tank and skylight for my '84 Westy? Anyone have these used? I need the whole skylight assembly. Mine is cracked and water has gotten inside it and stinks something fierce! Does anyone recommend something other than the original? My LP tank had a small hole in it. So I need a replacement ideally with the fill valve as well. Joe ps I live in Madison, WI John wrote: > john silverman wrote: > > > > Well, Vic (90 syncro westy) has been at the local mechanic several times > > over tyhe last few weeks in a (so far unsuccessful) attempt to pass > > emissions. He was able to get the CO down fine, but the Hydrocarbons don't > > seem to drop, especially at 2500 rpms (part of the test). > > > > Dropped the van off yesterday, and he spent time this AM on it. He just > > called and said he couldn't get it down, and he thinks I need a new AFM and > > O2 sensor. He's also concerned that there may be a problem inthe digifant > > brain. > > > > Any other thoughts? > > > > Thanks...John > > John: > > My name is John and while its easy to sit back and criticize another's > diagnosis, I have my doubts that your vanagon's oxygen sensor, AFM & > Digifant control module have all failed at the same mileage and the > engine still starts and runs ! Diagnosis by component replacement (AKA > "shotgunning") is a regrettable and wildly expensive method of > troubleshooting ! Typically a motor with low CO and high HC is a lean > misfire and the most common reason is an unmetered air leak. The > Digifant control module(DCM)is the most reliable part of the system and > like any computer it conforms to the GIGO rule. Prior to replacing the > DCM, a pin by pin check should be carried out at the DCM multiplug. If > your tech doesn't know how to perform a pin by pin or doesn't know the > values of the 19 DCM pins, you may be talking to the wrong tech ! The > DCM makes a few assumptions-have these been checked? > > Basic ignition distributor timing correct- 6*btdc > > No unmetered air leaks- what is the manifold vacuum? > > Correct fuel pressure- 2.5 bar with vac line disconnected > > O2 sensor functioning- ~0.2 to ~0.8V "swing" at idle speed > > AFM functioning-~1 to ~5V DCM load signal with engine stopped > (air baffle fully closed to fully open by hand) > > Good luck and I hope this helps ! JP
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