shafner30

hello

i am getting a code 71 from my 1990 22re

i know its the egr

i think the egr valve is working fine

after i cleaned the throttle body with the throttle body cleaner the light went on

do you guys think buy useing the cleaner and a little wd40 inside where the rod for throttle butterfly to lube it up because it was sticking.

would that cause the egr temp to go bad?

and turn on the check engine light

it only turn on on the highway.

let me know

thanks

Dewbro91

Throw a 10k resistor in the connector. I did it awhile ago and have never had a regret doing it No power loss or mpg difference

shafner30

how did you do that

do you have pics i can see?

davo247d

thers got 2 be a way 2 fix it without putting a resistor in it? because i have the same problem

Tubbyfatty

Did you just leave all the EGR stuff hooked up to the engine still?

Dewbro91

Shafner, unplug the connector on the side of the EGR itself and put the resistor in the BODY side of the plug. You can pick up a pack of resistors from radioshack for like 2$.
Tubbyfatty, yes I left everything hooked up. Like I said no power loss or mpg loss either

Dewbro91

Here is a pic, sorry if it is blurry as it was took on my phone

shafner30

hello

can anyone tell me what is going on i am ready to tear the check engine light out!

its driving me nuts.


when i drive on the highway a little up hill

somtimes not all the time

the truck will begin to ping then right after that the check engine light turn on code 71 22re

i know its egr code

the egr is not blocked

is it the egr temp sensor?

or what

please let me know

its driving my crazy

shafner30

what size resistors do you use

and is the connector is the one that goes into the connctor for the sensor

dropzone

iTrader: (6)

it is in the post above

edit: I merged your two threads on this subject, no need for two of them

shafner30

sorry dude its been a long day at work i forgot you posted that

Dewbro91

Use a 10k (ohm) resistor. just unplug the sensor and put in the plug

shafner30

is it safe to put that resistor in there its not going to blow up my engine?
haha

shafner30

i forgot thank you for all the help and pic..

shafner30

does the egr valve still work open and close with that resister in the plug

Tubbyfatty

x2, i would also like to know haha. My CEL light goes on and off every now and then, code 71.

vital22re

iTrader: (2)

i'm curious if anyone has tried taking the sensor out and cleaning it?

Dewbro91

Lol your engine is not going to blow up. And as far as I can tell it is still woring because my engine runs great. One way to tell tho is drive it for a bit (after you put the resistor in) and feel the pipe going into the intake from the EGR. If it is hot it is working.
Vital, I took my sensor out and it looked fine. It doesn't go into the exhaust gases, it just threads into the side of the EGR and measures the temp. I don't think they really get dirty

DupermanDave

I've had this code for a while and taken both the sensor and the EGR itself off and cleaned them very thoroughly. No change at all, the code still comes back after resetting the ECU. It may be a bad sensor, or it may be a bad EGR valve.

I did the suction test and found at idle, if my EGR is manually opened it will try and stall the engine, so it's not a sticking EGR. It's most likely just a bad sensor.

TOE-B

im having the same problem in a 4runner with the 3.0 v6. ive replaced almost all the egr componets. im running out of ideas! i dont want to get rid of it i all ways wanted one and ive only had this one for a few weeks. anyone out there know what else it could be?