Robert, The white colored hot start relay socket is already installed in your DeLorean, you will find it located at the rear most section of the electrical compartment attached to the main wiring harness bundle. Unfortunately there is no relay available to plug into the socket. You said that when you swap the cold start connector with the warm-up regulator the car starts fine, this is an indication that the time-temperature switch is defective. "We're here to help you" DMC Help / De Lorean Services / <dmchelp@xxxx> Web Site: <www.deloreanservices.com> ----- Original Message ----- From: Robert Rooney To: dmcnews@xxxxxxxxxxx Sent: Saturday, August 12, 2000 10:28 PM Subject: [DML] Re: Summer Heat, now hard starting Q In a way I'm kina glad to hear about this; it means I'm not the only one! I've been having the exact same problems that you have, but thought that it might be due to other factors on my engine. Warm temps in spring time: no problem. Summer heat: hard starting. If you're out some place and you need to leave in a hurry, swapping the cold start valve & the control pressure regulator plugs will get you going in a hurry. Now for the interesting part! If you turn to section D:01:15 of the workshop manual under Electrical Circuit Function, the last paragraph reads (bad punctuation included): "The car is wired for a hot start relay. This relay can be installed if a hot starting problem is experienced in excessively hot regions of the country. When this relay is used is used, the cold start valve will inject intermittently durring cranking when engine is hot." If anyone here knows how/where to install this relay, let us know. It would definately same me a bit of embarassment in the parking lot! -Robert vin 6585 [Non-text portions of this message have been removed]