help hard start

[probegtr89]

hello , im posting this thread because i own a 96 aurora and im having a hard time everymorning because it wont start easy, and i noticed a excesive fuel consumption , and the temp always goes to 200 , the avg mileage is 10 mpg , plus the traction control doesnt work , help me please

[jdl]

When was the last time the vehicle had a tune-up? Fuel filter--air filter, everything ok?

Once you get it started in the mornings, does it start ok the rest of the day? That almost sounds like a fuel issue. Can you check fuel pressure, does it bleed off?

Any trouble-codes? Some of the national brand auto-stores will read codes free of charge.

[probegtr89]

hey ive changed the pump and the filter already , the codes are p0171 p0174 p0131 p1406 i dont knoe what to do , im desperated , i cant afford that much gas , its ridiculous ,

[jdl]

After seeing your codes, I would suggest checking the egr valve and circuits. The valve may be stuck open. The p1406 is an egr pintle position error.

[probegtr89]

but ive cleaned that valve and no results , whats the aurora avg mpg??? and no black smoke btw , only the excessive mileage , do u think that the fpr may be damaged ? and how i know if it is ???

[jdl]

If both both banks are showing a lean fuel trim, the first thing you check is fuel pressure. I've already asked you about fuel pressure. You can't diagnose fuel injection systems without a fuel pressure gage. It's a basic tool like a screwdriver. Fuel pressure may not be your problem, but you have to start somewhere, you got to rule something out.

You might also check the maf sensor. I'm not saying replace it.

As far as the egr valve, you might block off the egr, see if that helps. There shouldn't be any egr flow at start-up and idle. If you erased the codes after you worked on the egr valve, and the code came back, you still have a problem with that system.

[probegtr89]

ill bock off the egr and see what happens , hey do u know why the abs and the traction control doesnt work ??? both lights are lit , and its always off, this car is driving me crazy