Hi Bruce, Have you read Greg Gordon's L-Jetronic troubleshooting guide? http://www.hiperformancestore.com/Ljetronic.htm very useful.
Vacuum leaks, the aux. air valve not opening and an iffy temp sensor are likely culprits. A sticking flap in the AFM could be an issue that lessens when the temp rises although that would probably be an issue when cold as well. Jef Fowler Motozane.com ------------------------------ Date: Mon, 2 Apr 2012 15:33:17 -0400 (EDT) From: [email protected] Subject: [alfa] GTV-6 Cold Start problem in warm weather OK, I know this is weird, but for several years I've had this problem. So far I have been able to get under way each time. For example, this afternoon, the GTV-6 had not been driven in 24 hours. The car was sitting in the bright sun, and the outside temperature was in the mid 70s. The inside of the car is hot, but I don't know the temp under the hood. I turned on the ignition switch, and the engine started immediately as it usually does when cold. But then it immediately died as if I had turned off the switch. This happens within the first second or so - rrruumm then it dies unless I am ready to pump the gas pedal. If I catch it before it completely dies, it runs but stumbles like it was running on five or four cylinders. This rough running disappears after driving a block or less. If I don't catch it when it dies, it grinds and stumbles until it catches. Then runs roughly as previously mentioned. This does not happen when it is cold and has not been sitting in the sun. It also doesn't matter if the temperature is in the 80s or 90s. This problem also occurs if I drive somewhere and leave the car for maybe a couple of hours. I haven't actually timed it. If I make a short stop, then start it, there is no problem. But, if I leave it for an extended time, it fires up then dies as above. It acts as if the cold start valve shoots in gasoline, but some other part of the system doesn't tell the computer to operate the fuel function. Any ideas? Thanks, Bruce Sharer Raleigh, NC Annoying GTV-6 problem -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
