Engine Check Engine Light

[ace940]

hi all. on some days when i get up to go to school or anytime when i start my car the cel flashes 4 times and then the engine revs to about 1.5k and will hold untill i put the engine under load. im wondering if anyone knows what that means. my guess is a bad tps but i dont want to spend the money w/o knowing. thanks

 

[95Vert383AOD]

Unplug the tps before starting and see what happens....If it does the same then try pulling the IAC

 

[ace940]

it only does it occasionally is there a code in those 4 blinks somewhere they are all evenly spaced

 

[toyman]

Were you playing with the DTC connector recently. I ask because if you left a jumper on between the self test input and pin 2 on the larger connector the CEL will flash 4 times when the ignition is turned on.

 

[BlownFiveLiter]

Does it have any codes when you check them?

 

[ace940]

i checked them once but didnt get any that were in the book that came with the reader

 

[StangGT1995]

What codes come up when you run them?

 

[ace940]

how do you check the codes w/o the scanner? i know it can be done i just dont know how

 

[toyman]

how do you check the codes w/o the scanner? i know it can be done i just dont know how

i checked them once but didnt get any that were in the book that came with the reader

This post by you indicates you have a reader. What did I miss?

This link should help you with checking the codes without a reader.

 

[ace940]

i just dont like the reader. its way older than the car and the book didnt have the codes we got. maybe we were reading them wrong? idk

 

[ace940]

i checked the codes and found the following... key on engine off, 552-secondary air injection bypass (airb) circuit failure/ 553- secondary air injection diverter circuit failure/ 558- egr vacuum regulator circuit failure/ got all of those 2 times/////then the memory with key on engine off, 332-insufficient egr valve opening detected/ got that one 2 times/////////// key on engine running, 172- heated Oxygen sensor indicates lean condition right side (memory)/ 332-insufficient egr opening detected (memory)//////////////////// what does all of this mean? i know that the egr isn't opening properly. however that's all i got from this.