2006 hilux 1KD engine missing when cold

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2006 hilux 1KD engine missing when cold

Postby Brian06 on Fri, 13 May 2022 6:59 +0000

When starting the engine from cold, I slowly increase the rpm to around 2,000 to 2,500.It then starts to miss slightly and puffs out some smoke and smells like unburnt fuel. I have just replaced the injectors with new genuine Denso's and a new turbo (genuine)with a 3"exhaust.When it is up to normal operating temp it is completely fine and does not miss at all.Any ideas what it could be.It has 259,000kms on the clock.
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Re: 2006 hilux 1KD engine missing when cold

Postby Gipsy on Fri, 13 May 2022 9:28 +0000

It sounds like normal overfuelling on start. As you probably know, diesel engines don't have a choke, the injectors increase the fuel delivered to the engine to compensate for a cold engine. When hot, the ECU reduces fuel delivery to normal and the engine will run normally.
Have you coded the new injectors? They require coding to match the ECU.
Cheers Gipsy :D
My 2013 auto D4D DC SR5, prefilter, 3" exhaust and Chip with egt probe, stock SR5 rims with Toyo Open Country AT2 265/65R/17's
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Re: 2006 hilux 1KD engine missing when cold

Postby hiluxxury on Fri, 13 May 2022 4:46 +0000

Who did the injector work for you? I'd be taking it back to them for a look at the feedback values and probably pulling the injectors out to clean the seats properly.
I might be wrong.

2005 SR Hilux 1KD - SOLD
2009 BMW X5 - destroyed by a hail storm
2012 Range Rover Sport SDV6 - SOLD
2015 Ford Ranger
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Re: 2006 hilux 1KD engine missing when cold

Postby Brian06 on Sat, 14 May 2022 3:30 +0000

I do all the work myself,I use techstream to code the injectors, feed back values are within specs and have installed new washers and cleaned the seats.All work done as per manufactures specs.Any more suggestions.
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Re: 2006 hilux 1KD engine missing when cold

Postby Gipsy on Sat, 14 May 2022 3:52 +0000

Normal cold engine overfuelling. If it runs fine when engine is hot then don't worry it's normal.
Cheers Gipsy :D
My 2013 auto D4D DC SR5, prefilter, 3" exhaust and Chip with egt probe, stock SR5 rims with Toyo Open Country AT2 265/65R/17's
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