Thanks for all the Info. I found the cold start injector pipe that attaches to the manifold under the throttle body to be extremely loose. I tightened it up and it runs allot better. I think I may need a tune up and that should fix the majority of the problems. Thanks again for all the assistance. Jon Lockwood (Bastrop TX) 68 Dopple Kabin (Dusty Dick) 63 Ranchero (Barney) 61 Ranchero (Stella) 74 Super beetle (Blacky) 82 Delorean (Barbara) ----- Original Message ----- From: Tom Tait To: dmcnews@xxxxxxxxxxxxxxx Sent: Wednesday, November 04, 2009 11:16 AM Subject: RE: [DML] Catalytic converter Jon: My cat came apart and terminally clogged the muffler. It can happen and will result in low power. It was not very noticeable at idle but on acceleration there was a loud his and low power. In my case it was pretty obvious what had gone wrong. If your car does not idle well, then its probably fuel or ignition. Check for good spark, good spray patterns from the injectors, even volume from the injectors, and for vacuum leaks. Tom From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of JonL Sent: Tuesday, November 03, 2009 6:08 PM To: dmcnews@xxxxxxxxxxxxxxx Subject: [DML] Catalytic converter Howdy I'm Jon and new to the list. I recently purchased my first delorean, it's a 1982 with fuel door. My question is the engine runs real bad when cold, and runs a bit better when warm. I am familiar with Bosch early fuel injection as I have restored my far share of VDubs. The question I have is do the catalytic converters in the DMC 12 have a history of colapsing or cloging? It seems to me the engine is being very sluggish. and not very responsive to engine throtle. Could this be due to the converter or does anyone have another answer like injectors, timing, etc. Any help would be greatly appreciated. Thanks By the way I live in Texas [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: dmcnews-digest@xxxxxxxxxxxxxxx dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/