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Sky_Boss · 02-27-2014, 04:29 PM

Just ran into something I wasn't expecting to happen and thought it might be of interest to AFO owners.

Last night my check engine light came on my 2013 CRV so today I got it over to the shop. Fortunately the shop was familiar with TOAD stuff since there are so many winter Texans here in Alamo, TX. After he ran the codes and hooked it up to the computer he saw I had a vacuum leak and removed the AFO from the vacuum system. Problem solved? LOL Not quite since, of course, that isn't how I want to run it.

While they were writing up the service ticket I called SMI. Apparently this is not a new issue and if this runs true to form it is a blocked/failed check valve in the control box. NOT the check valve used to connect the hoses themselves. The answer is that they will send me a check valve (actually 2 since I asked nicely) that will be spliced in the vacuum hose between the control box and the CRV's vacuums system. It is for that large hose from the control box and won't require any clamps. Just cut and slip it on with the black end of the valve facing the control box.

Assuming this fixes the problem...no big deal. OTOH...I've only had mine for about 9 months and am surprised it failed. That is why I asked for a second check valve in case this becomes a repeated failure problem. The only serious issue I have is it cost me $62 to find this out. SIGH!

adonh · 02-27-2014, 04:39 PM

Quote:

Originally Posted by Sky_Boss

Just ran into something I wasn't expecting to happen and thought it might be of interest to AFO owners.

Last night my check engine light came on my 2013 CRV so today I got it over to the shop. Fortunately the shop was familiar with TOAD stuff since there are so many winter Texans here in Alamo, TX. After he ran the codes and hooked it up to the computer he saw I had a vacuum leak and removed the AFO from the vacuum system. Problem solved? LOL Not quite since, of course, that isn't how I want to run it.

While they were writing up the service ticket I called SMI. Apparently this is not a new issue and if this runs true to form it is a blocked/failed check valve in the control box. NOT the check valve used to connect the hoses themselves. The answer is that they will send me a check valve (actually 2 since I asked nicely) that will be spliced in the vacuum hose between the control box and the CRV's vacuums system. It is for that large hose from the control box and won't require any clamps. Just cut and slip it on with the black end of the valve facing the control box.

Assuming this fixes the problem...no big deal. OTOH...I've only had mine for about 9 months and am surprised it failed. That is why I asked for a second check valve in case this becomes a repeated failure problem. The only serious issue I have is it cost me $62 to find this out. SIGH!

That does not sound good. I just had the SMI installed. Where is this check valve, do you have a picture. Thanks

Sky_Boss · 02-27-2014, 08:43 PM

Quote:

Originally Posted by adonh

That does not sound good. I just had the SMI installed. Where is this check valve, do you have a picture. Thanks

The check valve I am talking about is INSIDE the control module. It appears that a faulty check valve inside the module is in line with the vacuum hose and thus can be "replaced" by putting another check valve into the vacuum hose.

there is another check valve that is between the crank case and the "T" that connects the AFO into the vacuum system. That, apparently, is not the problem. I asked them about it. also, in trouble shooting the problem we left that check valve alone and when we bypassed the AFO control box the problem went away.