Location: Northern NJ
Posts: 8,578
My VIN: 10757 1st place Concourse 1998
Three more tests. Before trying to start it see if there is any resistance when you try to push the air sensor plate down. Now try starting hot again but check for spark. If you have spark then try the plug swap and see what difference that makes.
Last edited by David T; 05-18-2017 at 09:35 AM.
David Teitelbaum
Location: Reedsburg, WI
Posts: 4,026
My VIN: 5180
Club(s): (DMWC) (DCUK)
This may not fix your issue, but try depressing the gas pedal 1/4 - 1/2 while cranking the Hot engine. It should help clear the excess fuel and help it to re-start it.
It is stated in the owners manual to depress the throttle a 1/4 travel to aid in starting. We are so used to modern EFI vehicles we tend to skip this step and don't touch the pedal when cranking most of the time the engine fires right up this way but not always for some situations.
What is the Ambient Air temp when the problem occurs most of the time?
DENNIS
VIN 5180, Frame 3652, STAGE II, DM-eng Solid State Solutions (RPM Rly, Dm.Lt.Mod., Fan Fail Mod. , FAN Rly, HS.Rly) , HID headlights, SPAX user since 2009, Eibach springs, M Adj. Rear LCA's, DPNW poly-sway bar kit, DMCEU LCA Stabilizer link kit, DMCMW Illuminated door sills, Aussie Illuminated SS Shifter plate, REAL MOMO EVO Steering wheel, DELOREANA Extended View Side Mirrors w/ Heaters, DELOREANA LED Door Lights.
Hi everyone!
Today I've figured what was going on.
My Ignition coil gets too hot, and does not provide the spark needed to fire the engine. That's why if I wait for about 10 minutes, it works, I think it cools down and works.
The coil installed is not stock, was put by PO, cause we don't have the same one from bosch here in Brazil, so I had another one from a friend and now its working.
I've already ordered one from DMCH, waiting to arrive.
Fernando Silotto. Sao Paulo - Brazil
Delorean Vin 3772
Last edited by madstudios; 05-23-2017 at 10:47 PM.
Location: Northern NJ
Posts: 8,578
My VIN: 10757 1st place Concourse 1998
We have seen similar problems before with none-stock ignition coils. People try them thinking it will give them a boost in performance. That doesn't happen BUT they do often cause problems. Make sure all of the connections are clean and shiny on the ballast resistor and it is connected up correctly, ie, all of the wires are where they are supposed to be on it. Sometimes it gets rewired or even bypassed to make the coil even hotter. In fact, on some performance coils, you remove the stock ballast resistor and use a special one that comes with the coil. Mallory did that back in the 70's.
David Teitelbaum
Dave M vin 03572
http://dm-eng.weebly.com/
I've installed a new ignition coil, and apparently the old one was causing the problem. Tested and everything is working great!
Fernando Silotto. Sao Paulo - Brazil
Delorean Vin 3772