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Hello everyone,
Well the more and more I drive it, it seems to have a 2-3 second lag if I floor it to the ground its 1.... 2.... Go.... and the it launches same on the free way I floor it 1....2.... Then it goes. Any Ideas
Thanks
Nick
There's a delay built into the programming that tells the system to wait until the turbos have spooled up before dumping excessive fuel into it. This helps prevent excessive soot buildup right off idle.
That sounds normal to me, maybe a little longer than it should take. The turbo will give some lag, but it shouldn't take too long. I have found with my truck, that if I don't just floor it, and I "lead" into it if you will, that it takes off faster. Just my 2 cents though.
Yes, Spartan, SCT and Innovative all have tunes that will eliminate the lag considerably, not completely from what I hear, but considerably. What they do is is dump in more fuel to compensate for the turbos having not spooled up yet.
Another thing for you, when you are in a regen cycle, the lag is not as bad. Sometimes I get startled at how quick the motor jumps the truck forward while in regen.
I think the PCM compensates for lower boost by giving us more fuel. Try it some time.
Another thing for you, when you are in a regen cycle, the lag is not as bad. Sometimes I get startled at how quick the motor jumps the truck forward while in regen.
I think the PCM compensates for lower boost by giving us more fuel. Try it some time.
That weird you mention this. Yesterday while I was driving around flagstaff I noticed this. Every other time I has gone into regen its been on the free way. I must say tho is sounds weird when you floor it from a stop and then let off.
As an FYI, I had a cracked DPF, smoke out my tailpipe, and no CEL at all and never saw a regen. Dealer replaced the DPF and it's all good now.
So you dont necessarily have to get a CEL, to have a bad DPF.
True, but I was actually referring to if the DPF was clogged, then it would probably throw a code. If it's cracked, it just bellows out black smoke like normal diesels, not neutered diesels like ours.