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I've installed a 2004 Suburban 5.3L engine with a 4l60e transmission in my 1949 Oldsmobile. I'm keeping the truck intake but I've had a 4" cold air intake installed without a sensor. The mechanic tells me I'll need it only if I plan to use cruise control. I am using a Dakota Digital VHX cluster gauge panel, with a BIM extender. What sensors can I eliminate legally in California without affecting engine performance?
Bob
Bob, it is this exact type of info that tells me your installer has no clue what he is doing . the sensor in the intake tube for your 5.3 engine has 2 functions first, it is the MAF (mas air flow) sensor which measures the volume of the air going into the engine, a must have. the second is the IAT (intake air temperature) sensor, also a must have. NIETHER OF THESE HAVE ANYTHING TO DO WITH CRUISE CONTROL. nothing no where no how. PERIOD.

assuming your using the stock harness you need all the following sensors for it to run correctly, however since it is in a 49 olds NONE OF THEM are legally required, however they are all requires for the engine to run properly.
1. MAF mas air flow sensor, it includes the IAT.
2. CTS coolant temp sensor
3.knock sensors
4. both forward O2 sensors
5. crankshaft sensor
6. camshaft sensor
7. oil pressure sensor, only so the DD BIM can report oil pressure to the dash

all other sensors can be eliminated. and must be turned off in the ECU by a competent tuner, along with the vats.

Feel free to send me a pm and I'll send you my number so I can better explain all this if you need .
 
your painless 18 circuit harness has nothing to do with engine function either. that is all stand alone in the engine/trans harness, which minimally ties into the painless harness.
 
I can do that if someone is willing to recommend a shop in the San Diego/Los Angeles area, because there is no such shop that I know of in a 100 mile radius of where these cars are being restored.
I contracted this fab shop to remove the old engine, cut the front clip, restore the old floor pan and install a custom made front clip, and mount the 2004 5.3 LS with a 4L60e transmission with a guarantee that it ran. He also installed a new radiator, rack and pinion steering, Willwood brakes, Lokar shifter, Sanderson Headers, Flaming River steering column.
Just recently I asked him to install the Dakota cluster panel, and the Painless wire harness to install the lights. Then he's done. Before it goes to paint, I want to see this puppy run like it should, but I'm not expecting him to accomplish that.
I hope this explains my situation a little better.
Bob
For tuning I use a guy in Bakersfield his shop is called Calspeed. as a mechanic the work is so-so looking not refined just basic install, but his tuning is top notch.
 
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