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  1. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    Agreed :) I don’t do it on the NHW11, and only rarely did it on the NHW20!
    Post by: landspeed, Mar 21, 2026 at 3:42 PM in forum: Generation 1 Prius Discussion
  2. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    OK - I wasn’t aware of that (it also means that my ‘car sympathy’ worked, in that I only did ‘overspeed’ by a small amount, and not enough for the...
    Post by: landspeed, Mar 21, 2026 at 3:41 PM in forum: Generation 1 Prius Discussion
  3. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    My worry (in the past) about switching into drive, from neutral (on my NHW20) was stressing the drivetrain, by switching into drive, from neutral,...
    Post by: landspeed, Mar 20, 2026 at 5:29 PM in forum: Generation 1 Prius Discussion
  4. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    I wasn’t aware that there was, essentially, a clutch that is just left ‘engaged’ in the drivetrain; this will be another reason to avoid switching...
    Post by: landspeed, Mar 20, 2026 at 6:11 AM in forum: Generation 1 Prius Discussion
  5. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    End result : it was just a single bad coil pack! It is interesting that a bad coil pack can cause such a severe failure - without any codes in...
    Post by: landspeed, Mar 19, 2026 at 1:52 AM in forum: Generation 1 Prius Discussion
  6. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    OK … it is almost certainly a coil pack randomly going bad! I have never tested ‘bad cylinders’ on a Prius, so: - disconnecting the ‘low voltage...
    Post by: landspeed, Mar 18, 2026 at 6:58 PM in forum: Generation 1 Prius Discussion
  7. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    I did check the fuel tank and fill pipe - it hasn’t rusted through, and there were no fuel leaks when filling the tank; I am hoping it isn’t the...
    Post by: landspeed, Mar 18, 2026 at 3:03 PM in forum: Generation 1 Prius Discussion
  8. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    I do agree fully! I’m doing the spark plugs because I know they need to be done (I have done other maintenance, but these are the same ones that...
    Post by: landspeed, Mar 18, 2026 at 2:53 PM in forum: Generation 1 Prius Discussion
  9. landspeed
    Post

    Li-ion cells from RAV4 to Prius gen1

    Definitely avoid the Li-ion batteries! In theory it could work, but you would need to reconfigure the inverter for a different battery voltage,...
    Post by: landspeed, Mar 18, 2026 at 6:39 AM in forum: Generation 1 Prius Discussion
  10. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    I will do (most of my tools are about 100 mile away … will correct that when fixed - I have a compression tester among other things, so will grab...
    Post by: landspeed, Mar 18, 2026 at 2:11 AM in forum: Generation 1 Prius Discussion
  11. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    Nearly 7! I saved the post and came back to post it now! (PriusChat went down - I couldn’t access it for a while, using 3 different ISPs, and 3...
    Post by: landspeed, Mar 18, 2026 at 2:10 AM in forum: Generation 1 Prius Discussion
  12. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    delete again
    Post by: landspeed, Mar 17, 2026 in forum: Generation 1 Prius Discussion
  13. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    Delete
    Post by: landspeed, Mar 17, 2026 in forum: Generation 1 Prius Discussion
  14. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    repeat delete
    Post by: landspeed, Mar 17, 2026 in forum: Generation 1 Prius Discussion
  15. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    rm -rf deleted repeat post
    Post by: landspeed, Mar 17, 2026 in forum: Generation 1 Prius Discussion
  16. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    repeat deleted
    Post by: landspeed, Mar 17, 2026 in forum: Generation 1 Prius Discussion
  17. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    OK; I did some testing, and made some progress (a partial fix…) First, I realised something about the largest relay box; the horn has a 10a fuse...
    Post by: landspeed, Mar 17, 2026 in forum: Generation 1 Prius Discussion
  18. landspeed
    Post

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    I had come across that TSB yesterday, but that thread gives a lot more info! Something interesting is : this car is a Japanese used import (not...
    Post by: landspeed, Mar 17, 2026 in forum: Generation 1 Prius Discussion
  19. landspeed
    Thread

    Cold start : cuts out after ~7 seconds. Did this once every few months, but now totally dead.

    I posted a thread about an issue I had with my car recently. Got mini VCI today, also realised something important. The problem is quite different...
    Thread by: landspeed, Mar 17, 2026, 39 replies, in forum: Generation 1 Prius Discussion
  20. landspeed
    Post

    Sudden severe misfire, *much worse* if *any* coil packs are disconnected!?

    Also a possible clue; I have a wifi OBD2 reader that worked on my newer 2008 Prius, and also a Nissan Lead, but it never worked on this 2003...
    Post by: landspeed, Mar 17, 2026 in forum: Generation 1 Prius Discussion
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