Po430 whats side is bank two in chevy tahoe 1999
SOURCE: Engine code 430
did you use oem catalytic converters????? the aftermarket converters break down very fast. thats why they are cheap. we have to replace them all the time due to bad catalytic converters.
SOURCE: fuel pump replacement 1999 chevy tahoe
That has alot to do with the price of the pump, i know there expensive. The thing to do is call an auto parts store and ask what the price is for a pump, once you know that, then you can call around to shops in your area and get there price or labor rates, and that will give you an idea what it will cost. I know its alot of calling but its the best way, so you can guard aginst being riped off. It should not take a good michanic more than 2 to 3 hours to chg. one.
SOURCE: I have A 1999 Chevy Tahoe I'm getting an error code P1345
P1345 is cam shaft to crankshaft out of sync.Timing is off on the chain,but not by much,or it wouldn`t run.Oil pressure is low maybe because the oil pump is binding (tight)and making the cam drag(the oil pump shaft is driven off the cam),I would pull the oil pan ,and remove the oil pump and try and turn it to see if that is the problem..If it is ,replace it with a high volume so you know the oil pressure is gonna be good.Also check the oil sending unit before you do this so to see if it is the cause for the low oil pressure reading.If the oil pump is tight to turn,then this would cause the code,and there would be no reason to replace the timing chain.But if the oil pump is not hard to turn by hand ,then the timing chain and gears are to be changed,this would cause the code.If I can help,let me know.I will try to do my best to help.
SOURCE: 1998 chevy 1500 with a 5.7 has engine code of po430
hi your code says u have got a bad catalytic converter
SOURCE: have a 1999 Chevy Tahoe,
* p0172 bank 1 rich. If you have access to a scan tool, I would check the fuel trim and see if engine is running rich all the time. In Chevy, if both banks are too lean or too rich, usually the cause is the Mass Air Flow sensor being dirty.
* P0420 The PCM copares switch rates between the front O2 sensors and the downstream catalyst moniters. The catylist moniters are often mistaken as O2 sensors, and they are, but that is not their job, or what they are called. By comparing the switch rates between the front (before cat) and rear (downstream of cat) the PCM knows if the cat is affecting the exaust, and how much it is affecting the exaust. If it sees little or no effect o the exaust gases that have passed through the cat, then it decides that the cat is not working anymore, and sets a P0420, bank 1 it is. To check this yourself, you will need to bring up data stream on your scanner, watch the upstream and downstream O2 parameters and see if they are following each other closely. If the cat is working right, you should see a fairly rapid switch rate, probably 5 or 6 times a minute on the front O2, but almost a flat line just above .5 volts on the rear. If the rear is switching often you proabably need a catalytic converter. Most likely related to the P0172 code above.
* P0300 multi misfire probable cause. Fuel injectors always seem to get the blame for this one since the there is only a lean condition to one side of the engine.
The fuel injectors on these trucks really have one problem, the poppet nozzles at the end. They can stick either open or closed. If they are stuck closed, then servicing the system will clear up the problem (I recommend that they use the 'top engine cleaner' over anything else). However, if they are stuck OPEN, then no amount of cleaning or servicing will fix the problem unless the nozzles are replaced.
Here is a TSB link to the GM's upgrade from the SCPI to MPI system for your truck. http://members.shaw.ca/betterthanyoutoo/Sticking%20Poppet.htm
Here is also a link to the conversion being done on a 4.3 V6 vortec with the same issues your having. http://www.s10forum.com/forum/f107/scpi-to-mfi-upgrade-kit-324166/
Good luck and try using fuel injector cleaner first to address the issue, Lucas fuel injector cleaner is great for the price for how much you get for it. Just follow the instructions on the bottle and you should be good for a month of injector cleaner when you fill up the gas tank.
Thank you for using Fixya
hi,my friend, you can try,
Check for exhaust leaks at the manifold, pipes, catalytic converter. Repair as required.
Use a scope to diagnose the oxygen sensor operation (Tip: The oxygen sensor in front of the catalytic converter normally has a fluctuating waveform. The waveform of the sensor behind the converter should be more steady).
Inspect the downstream heated oxygen sensor (HO2), replace if necessary
Replace the catalytic converter
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