Check Engine light
Check Engine light
1993 b190
Check engine light came on after rv dealer reinstalled my generator.
Had aamco look it over and replace an o2 sensor but said he cannot find any reason for this light to be on.
The generator use to be connected to a seperate battery from the truck battery.
When they reinstalled the generator the connected it to my truck battery and put a 50 amp fuse between the battery and the generator. The 50 amp fuse keeps blowing when I try to start the generator. When it blew thats when the check engine light came on.
Any ideas???? Please help.
Check engine light came on after rv dealer reinstalled my generator.
Had aamco look it over and replace an o2 sensor but said he cannot find any reason for this light to be on.
The generator use to be connected to a seperate battery from the truck battery.
When they reinstalled the generator the connected it to my truck battery and put a 50 amp fuse between the battery and the generator. The 50 amp fuse keeps blowing when I try to start the generator. When it blew thats when the check engine light came on.
Any ideas???? Please help.
- weekender
- Seasoned Traveler
- Posts: 162
- Joined: Mon Aug 25, 2008 12:00 am
- B190 Year: 1993
- WBCCI: 0
- Location: Northampton MA
Re: Check Engine light
Yes -- take it back to the RV dealer and tell them to figure it out and fix it.
-
- Seasoned Traveler
- Posts: 199
- Joined: Mon Jan 11, 2010 1:00 am
- B190 Year: 1994
- Location: Boulder, Colorado
Re: Check Engine light
If the check engine light is coming on, it should be throwing a code number that can be seen with the OBD1 diagnostic system (because you have a pre-1996 engine). The code number will correlate to a cryptic diagnostic phrase like "332 EGR Value not opening". A lot of mechanics are unfamiliar with this older system, so you might have to hunt around to find one that is, or you could do it yourself (I didn't; there is one seasoned guy at the local Ford dealer who is the go-to person for me). Good luck!
Keystone
1994
B190 4x4
1994
B190 4x4
- skater
- Site Admin
- Posts: 2571
- Joined: Thu Mar 08, 2007 1:00 am
- B190 Year: 1991
- WBCCI: 13270
- Location: Annapolis, MD
Re: Check Engine light
I can't imagine how a generator install like that would trigger a check-engine light, unless they did something else (even accidentally) while they were working on it.
1991 Airstream B190 - bought, 2005; sold, 2011; bought 2017
1995 Airstream Excella 30' trailer
WBCCI #13270, Washington, DC Unit
1995 Airstream Excella 30' trailer
WBCCI #13270, Washington, DC Unit
Re: Check Engine light
What ive learned is that the generator is not recharging the truck battery. This means the battery is getting depleted every time i start the generator and then when i go to start the van it causes another depletion but then the alternator charges it. Mostly from a low percentage of power.
My uneducated theory is that it could be causing the computer to have problems and not work correctly.
Something else I might add...around the same time era i had remote start and keyless entry installed. Could remote start be doing something?
My uneducated theory is that it could be causing the computer to have problems and not work correctly.
Something else I might add...around the same time era i had remote start and keyless entry installed. Could remote start be doing something?
- skater
- Site Admin
- Posts: 2571
- Joined: Thu Mar 08, 2007 1:00 am
- B190 Year: 1991
- WBCCI: 13270
- Location: Annapolis, MD
Re: Check Engine light
Either theory seems plausible. I'm not at all familiar with what was in OBD-I computers, but I think they were pretty rudimentary.Cgzito wrote:What ive learned is that the generator is not recharging the truck battery. This means the battery is getting depleted every time i start the generator and then when i go to start the van it causes another depletion but then the alternator charges it. Mostly from a low percentage of power.
My uneducated theory is that it could be causing the computer to have problems and not work correctly.
Something else I might add...around the same time era i had remote start and keyless entry installed. Could remote start be doing something?
You are correct in that the generator isn't recharging the engine battery - it's isolated from the coach system, and usually there's an isolator that will let the engine battery recharge the coach battery (and power the coach 12 volt system) when the engine is running. (Most B190s had it; a few people have reported that doesn't work, though, so it's possible some either didn't have them from the factory or it was removed, for some reason.)
1991 Airstream B190 - bought, 2005; sold, 2011; bought 2017
1995 Airstream Excella 30' trailer
WBCCI #13270, Washington, DC Unit
1995 Airstream Excella 30' trailer
WBCCI #13270, Washington, DC Unit
Re: Check Engine light
Interesting. So is there a way to reinstall my coach battery and have the generator start and recharge on that battery?
I want the truck battery's only job to be starting the engine.
Sent from my LGMS550 using Tapatalk
I want the truck battery's only job to be starting the engine.
Sent from my LGMS550 using Tapatalk
- skater
- Site Admin
- Posts: 2571
- Joined: Thu Mar 08, 2007 1:00 am
- B190 Year: 1991
- WBCCI: 13270
- Location: Annapolis, MD
Re: Check Engine light
Basically you have to find the wire that is connected to the engine battery for the generator and move it to the coach battery.Cgzito wrote:Interesting. So is there a way to reinstall my coach battery and have the generator start and recharge on that battery?
I want the truck battery's only job to be starting the engine.
Sent from my LGMS550 using Tapatalk
Note, in mine that's how it was wired - the generator started off only the coach battery. Starting the engine engaged the solenoid that allowed the alternator to power the coach system (and recharge the coach battery).
1991 Airstream B190 - bought, 2005; sold, 2011; bought 2017
1995 Airstream Excella 30' trailer
WBCCI #13270, Washington, DC Unit
1995 Airstream Excella 30' trailer
WBCCI #13270, Washington, DC Unit