HELP.. PO 0300 Code 2002 Chevy Silverado 5.3

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March 19th, 2012, 6:48 AM

#11

wjm2002Chevy

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???? Not sure what your asking? I cleared all the codes with the hand held and started engine and let idle after installing the crank sensor...

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March 19th, 2012, 6:52 AM

#12

MDTAHOE

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Crank sensor varrence must be set/ programmed when replaced. It must be done with a scan tool (not a code reader).

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March 19th, 2012, 1:02 PM

#13

wjm2002Chevy

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Not sure what your asking? After I replaced the crank sensor i erased the codes with the hand held and started engine and let idle about 5 mins..

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March 19th, 2012, 1:06 PM

#14

wjm2002Chevy

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Oops!

Quote:

Originally Posted by wjm2002Chevy

Not sure what your asking? After I replaced the crank sensor i erased the codes with the hand held and started engine and let idle about 5 mins..

Didn't mean to repeat last post.. Sorry...

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March 19th, 2012, 6:03 PM

#15

EinST

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Quote:

Originally Posted by wjm2002Chevy

Ok, today out of desperation i changed the intake gasket because someone at the parts store told me they had a similar problem and that fixed there truck so i went for it and STILL NO FIX Grrrr...
Did another fuel pressure test and with the key on and the engine OFF ive got 50-52 lbs but with the engine running its about 47 lbs. What do you think??

47 with engine idling is not bad. 50-52, key on, engine off is questionable. However, if you hadn't done the CKP variation learn procedure like MDTAHOE says, the PCM is compensating for the reference period errors it learned of the old CKP sensor. Depending on the magnitude of errors, it can cause drivability problems or declare misfires that aren't there.

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April 10th, 2012, 4:43 PM

#16

wjm2002Chevy

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3 bad fuel injectors fixed the issues.... #2, 5,& 7

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April 10th, 2012, 9:39 PM

#17

EinST

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Oh, okay, thanks for the update.

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May 3rd, 2012, 12:41 PM

#18

slepley

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09,
What does the 02 sensor do? or to ask another question, what symptoms to look for when the sensors are getting worn out or lazy. My mechanic suggest we look at these since my truck has 134, 000 miles. Silverado 2003 4.8 L.
I'm the guy that put on the Bilstein 5100's as you recommended.
I am on vacation and using a sisters laptop.
Please send me your response to my email address.
slepley@***.net

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May 8th, 2012, 6:51 AM

#19

Larry Thomas

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i just fixed my 1996 silverado 5.7 litre.i am for victoria,it took my machanic 2 months.mine was the sensor on the distributor..one way to check it is start your engine on idle move the sensor and if the idle changers than it is stuffed....