*Need Idle Help* please

HISSIN50 said:

might try going into more specifics on what the symptoms are exactly. be very specific.
i thought you guys only had 3 digit trouble codes..??

check out the EGR if you have one (if EGR gasses are introduced at idle or WOT, performance really suffers).

good luck.

Click to expand...

The EGR, A/C, smog pump are all shut off when you go to WOT.

The codes are only 3 digits for our cars. You are reading them incorrectly.

How could you get a 4059? Each digit of the code is represented by each flash of the CEL. There is no zero!!!!!!!

Secondly, this is how to properly run the codes. First, stick the jumper wire in the DLC, then turn the key to ACC. The computer will perform a series of tests.

It will then begin the code sequence. Each code is repeated once. So, lets make up some codes. How about 314, 322, 769 (completely made up, may or may not be actual codes). How this works is the CEL will flash 3 times, then a 1 second pause, then 1 flash, then another 1 second pause, then 4 flashes. Since this code is done, it uses a longer pause (2-2.5 seconds). Then it begins with the next code (322), then it begins with the next code (769). Once it is done with the last code, it will repeat all of the codes again. So, you should now have written down on your piece of paper 314322769314322769. Then you see where the code repeats, and you can confirm the codes you got.

Then start the car with the jumper wire still attached. The CEL will flash half of the number of cylinder you have (i.e. 4 for V8). Then there will be a strange flash. After the wired flicker, you need to turn the steering wheel 1/2 turn in both directions, let go, and then press & release the brake pedal.

That tests the brakes and power steering. If you don't do the brake & PS test, you will get additional codes relating to the brake/PS.

Then, like earlier, the computer will spit out more codes. Works the same way.

Report back when you get the correct codes. That will be a immense help.
Scott