To Nick Many thanks, I have received the repaired module today. Now that it's fitted the signs look good. I arrived home late so it is too dark for a run out (rear lights dim, possible bad earth I am told) but the cold idle speed oscillates at around 800rpm which is a vast improvement. Was the cheque enough? John --- In doc-uk@xxxxxxxxxxxxxxx, Nick Tomlinson <nickandkathryntomlinson@xxxx> wrote: > > To John, I've fixed your ecu and I'll post it to you today. I tried it first and it started OK (1500rpm slowly dropping to 700rpm) then the idle speed jumped around a bit a few times randomly. To make sure it wasn't my engine being temperamental I plugged my ecu in and it was OK. I suspect it is the voltage comparator being dicky (LM2901N) but as I had to break into the box I replaced all of the chips anyway (but added sockets so you can change them if required using a screwdriver). Double check your idle speed control valve by removing it from the car. You should have 200 ohms between the centre pin and the outer pins. Briefly (less than a second) connect +12v to the centre pin and 0v to one of the outer pins. This should either completely open the valve or completely close it. Do you have a copy of the Delorean Workshop manual? Let me know how you get on. > > Regards, Nick. > > jchapelhow <chapelhow@xxxx> wrote:Nick. > > Thanks for letting me know, I had not expected such a fast turnaround > but if you do manage it this quickly so much the better! > > John. > > --- In doc-uk@xxxxxxxxxxxxxxx, Nick Tomlinson > <nickandkathryntomlinson@xxxx> wrote: > > > > To John, just to let you know I have received your ECU and the new > chips from Farnell (I've bought enough to repair 4 ECU's). I'll try > and get it repaired tonight or tomorrow and send it to you for > saturdays post. > > Nick. > > jchapelhow <chapelhow@xxxx> wrote:To Nick > > > > I have sent you the ECU today, it is guaranteed to arrive on > Friday. > > I am happy with your terms, it will be worth it just to prove if > the > > ECU is at fault! > > > > I will wait until the car is 'whole' again and then start on the > > battery probs. > > > > > > Many thanks > > > > John Chapelhow > > > > > > --- In doc-uk@xxxxxxxxxxxxxxx, Nick Tomlinson > > <nickandkathryntomlinson@xxxx> wrote: > > > > > > To John, no problem. Check everything that I said in an earlier > > post eg checking cabling voltages resistance at the ECU plugs first > > as my repair will not result in a working car otherwise. > > > Send the ECU to my works address (someone is always here to > collect > > post). I'll send you an e-mail once I have received the parcel: > > > FAO Nick Tomlinson; > > > Aston Dane Plc > > > Park Mill Way > > > Clayton West > > > Huddersfield > > > HD8 9XJ > > > My no. is 07736610787. > > > Cost of components is approx £5 and time to repair is about 2-3 > > hours (inc testing). I'd test your ECU on my car first, if it works > > then there is something else wrong. > > > Just send me a cheque for cost of parts plus return postage and > > send me 2 tins of the clubs Stainless steel cleaner (or its money > > equivalent). Its top stuff. > > > If I am not going on site this week then you may get it back for > > the end of this week. > > > Best way to test drain from battery is to disconnect the earth > > cable from the battery and connect an ammeter between the Earth > cable > > and the battery post and note the current drain. Disconnect each > fuse > > from the fusebox in turn to isolate which circuit causes the drain. > > If you find the drain then check the components on that circuit. If > > it turns out to be the charging circuit then disconnect the leads > > from the alternator as you may have a 'leaky' diode in the > rectifier > > that causes drain down. The safety lights on the doors may still be > > on when the doors are closed. You can disable these by > disconnecting > > them from the switches near the doors on the main car body just > > underneath the dash. > > > Hope this helps. > > > Nick. > > > jchapelhow <chapelhow@xxxx> wrote:Nick > > > > > > My garage have tried most of the 'quick fixes' for my idle > > problems, > > > it looks like the ECU is to blame. > > > > > > I would like to take you up on your offer of repair services, if > > you > > > could e-mail me off-list with your address and a price for the > > > component/delivery I will send you a cheque for the bits. If you > > > could also advise on your charge for the repair and timescales > that > > > would be great. > > > > > > As an aside could it be that this circuit is also responsible for > > the > > > car's battery drain? > > > > > > > > > John Chapelhow > > > > > > DOC 19 : 'Boeing' #0737 > > > > > > > > > Yahoo! Groups SponsorADVERTISEMENT > > > > > > DOC UK Website: www.delorean.co.uk > > > Unsubscribe: doc-uk-unsubscribe@xxxxxxxxxxxxxxx > > > ** Unless otherwise stated, all messages posted to the group are > > assumed public and may be printed in the club magazine ** > > > > > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of > > Service. > > > > > > > > > > > > > > > --------------------------------- > > > Yahoo! Plus - For a better Internet experience > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > Yahoo! Groups SponsorADVERTISEMENT > > > > DOC UK Website: www.delorean.co.uk > > Unsubscribe: doc-uk-unsubscribe@xxxxxxxxxxxxxxx > > ** Unless otherwise stated, all messages posted to the group are > assumed public and may be printed in the club magazine ** > > > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of > Service. > > > > > > > > > > --------------------------------- > > Yahoo! Plus - For a better Internet experience > > > > > > [Non-text portions of this message have been removed] > > > Yahoo! Groups Sponsor > DOC UK Website: www.delorean.co.uk > Unsubscribe: doc-uk-unsubscribe@xxxxxxxxxxxxxxx > ** Unless otherwise stated, all messages posted to the group are assumed public and may be printed in the club magazine ** > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. > > > > > --------------------------------- > Yahoo! Plus - For a better Internet experience > > > [Non-text portions of this message have been removed]