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 Post subject: California SMOG / EGR DYI tunes /?/ drive cycle
PostPosted: Mon Nov 05, 2018 11:18 am 
LOST Newbie

Joined: Mon Jun 22, 2015 1:22 pm
Posts: 64
Location: modesto, ca
I might need some help, I am currently using Nicks stock egr delete tune ... and have a couple issues passing smog in California.

Can the fuel request be tuned down and remove the EGR reporting requirement?

Puff test ... need to reduce smoke for the snap test ( hammer down the throttle, release ... check for smoke cloud ) It passed but the tech was on the fence for fail

ECU ... EGR incomplete reporting on scan tool after re flash. ( drive cycle procedure for the CRD )

Details of the saga ...


2005 with 118k miles
Weeks full egr
Nicks stage one full delete DYI tune
The jeep has been sitting in storage for over a year.

Round one ..... charge battery start and drive to the smog shop

Visual good ( all stock smog parts in place ) :ROTFL: . The tech took over 40 minutes with a flashlight inspecting with the engine cover on.
OBD code check GOOD, no fault codes or incomplete data stored

FAILED the visual smoke test ( :idea: I should have changed the tune file on the ecu :!: )

I was instructed to get a tune up and bring it back in for a Re check after a full service.

So, I took the jeep home and did some minor preventive maintenance... just because

New tune ( Nicks stock egr delete ) this should have helped the "puff" test ( more on this below)
air filter
Fuel filter
Seafoam hot injector soak
diesel Kleen
5 gallons of fresh fuel (started with 1/4 Tank @ a year old)

Put about 50 miles on the jeep just because ... hoping to get the injectors some exercise.

Puff test PASS ( smog tech said he was on the fence ) Nicks stock tune did help but there was still a small cloud during the test

? Before I ask for a custom tune, has anyone mechanically adjusted the fuel pump to lower the amount of fuel ?

The jeep failed due to the ECU indicating EGR incomplete. NO codes but the scanner is showing incomplete after 100 miles of driving.

I followed a couple drive cycle guides (google search ) but that did not clear the ECU.

?Does anyone have the CRD drive cycle procedure ?

Thanks guys

I didnt realize how much I missed driving the Jeep


I am a noob. Dont ask me
05 kj
OME / Billstein lift 2"
DACCO R36LS Torque Converter
DIY tune by Yeti stage II
Weeks full EGR delete
Cat cleaned
Muffler delete ... pHsGJ7Dy-w

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