Engine codes

[Saint_]

Originally Posted by nivram

Where is the PRC solenoid located? I looked for it today and could not see it, unless its underneath, back side of engine.
The car runs strong and no high/low idle like if it were the ABV the was at fault.
lites back on going to get it read tomorrow

it doesnt idle low/high with a half bad ABV solenoid. p1525 is an electrical problem, either the solenoid is bad, the wire is bad, not connected or ECU is shot. 99% of the time it is the solenoid.

[nivram]

Originally Posted by Saint_

it doesnt idle low/high with a half bad ABV solenoid. p1525 is an electrical problem, either the solenoid is bad, the wire is bad, not connected or ECU is shot. 99% of the time it is the solenoid.

OK, where is this one located?

[Saint_]

If it is 96-02, it is the ABV vacuum solenoid in the diagram:



That group of 4 is by the firewall at the center, next to EGR.

[nivram]

Originally Posted by Saint_

If it is 96-02, it is the ABV vacuum solenoid in the diagram:



That group of 4 is by the firewall at the center, next to EGR.

So it is up on top by the EGR, back side
Re tested -got 170 173 and 1524, which indicated the TPS and this one makes sense do to the lean trim indicated by the 170-3. I could not get good readings on the potentiometer, or good voltage readings. So I am, in my mind figuring out how to get some kind of reading that is usable. Its just the position of everything related to getting a decent reading. like standing on ones head.
Thanks Saint, I appreciate your info.

[keninn]

it aint the tps. the thing is screaming vacuum leak. probably cracked tee. this is why it comes and goes. eventually, it will be there all the time

[parasocks]

Originally Posted by bigb

In Toronto I can still get Shell 91 with 0% Ethanol but I fear they will phase it out one day. I get an instant 5-15% increase in MPG just by using a non alcohol fuel.

**** green hippies and their corn

Costco on The Queensway east of Islington sells gas now, premium is usually 1-3 cents above the posted price for regular gas at other stations. I save about $6-7 per tank as I live close so I can go there regularly. Not sure about the ethanol levels though I should ask or check the machine next time I go. Something to think about if you go past it I suppose. I think they have it at the Costco in Barrie as well maybe?

Costco - 50 Queen Elizabeth Blvd - Toronto - West, ON - Toronto Gas Prices

[nivram]

Originally Posted by keninn

it aint the tps. the thing is screaming vacuum leak. probably cracked tee. this is why it comes and goes. eventually, it will be there all the time

Usually a vacuum leak causes a higher than normal idle situation, and an acceleration hesitation. These parameters have not changed. If its there all the time then I will look in this direction.
Thanks any way.