Check Engine Light Error Code 1-1 HELP

[PlatinumTracks]

I changed the sparkplugs and finaly got it to idle right and now when i drive it just randomly cuts.

When i stop at a light usually idles good but lets say 1/10 outta each light i stop at it will just shut off once i hit the gas....

is this related to the code and were to i start to try and fix this....
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ECU(+B)

Diagnosis

•Momentary interruption in power supply to ECU.
Trouble Area
•Ignition switch circuit
•Ignition switch
•Main relay circuit
•Main relay
•ECU

 

[jdub]

Code 11 masks all other codes when it's present. First thing I would check is the ECU grounds at the intake manifold...remove the bolt and clean.

After that, clear codes by pulling the EFI fuse. Drive and recheck codes again.

Exactly how did you "get it to idle right"?

 

[PlatinumTracks]

Code 11 masks all other codes when it's present. First thing I would check is the ECU grounds at the intake manifold...remove the bolt and clean.

After that, clear codes by pulling the EFI fuse. Drive and recheck codes again.

Exactly how did you "get it to idle right"?

Replacing the spark plugs did it for me....

so im assuming that the ground is around or near the throttle body and i fucked it up when i took it off to do the spark plugs....

 

[AJ'S 88NA]

Replacing the spark plugs did it for me....

so im assuming that the ground is around or near the throttle body and i fucked it up when i took it off to do the spark plugs....

Grounds are 1 on the block from the battery, one on the head left side of motor, and one on the second intake manifold underneath with 3 wires on it. They all tend to get a little corroded.

 

[jdub]

Grounds are 1 on the block from the battery, one on the head left side of motor, and one on the second intake manifold underneath with 3 wires on it. They all tend to get a little corroded.

^^^ The ECU grounds I spoke of

 

[AJ'S 88NA]

^^^ The ECU grounds I spoke of

Yeah, I know, but looks like he didn't. Wouldn't hurt to clean them all up.

Glad to see you keeping an eye on things jdub.

 

[PlatinumTracks]

Yeah, I know, but looks like he didn't. Wouldn't hurt to clean them all up.

Glad to see you keeping an eye on things jdub.

ohh and thanks for the help both of you....

Thought this would be a walk in the park but my bootlegg wiring on the car don't help much......

any pics or diagram yall oculd point me to...

i lookin tsrm but must be lookin in the wrong location

 

[PlatinumTracks]

Scratch my last post...

so now i am getting

22 and 52....


22 is the water temp but 52 i have no clue what to do....??

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52
Knock Sensor Signal
Diagnosis
•Open or short circuit in knock sensor signal.
Trouble Area
•Knock sensor circuit
•Knock sensor
•ECU


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22
Water Temp Sensor Signal
Diagnosis
•Open or short circuit in water temp sensor signal (THW).
Trouble Area
•Water temp sensor circuit
•Water temp sensor
•ECU

ohh and thanks for the help both of you....

Thought this would be a walk in the park but my bootlegg wiring on the car don't help much......

any pics or diagram yall oculd point me to...

i lookin tsrm but must be lookin in the wrong location

 

[AJ'S 88NA]

http://cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=023 Here's some of it, you might clear all of them if you check your grounds and find that to be the problem, don't know for sure, jdub would.

 

[jdub]

What did you do to fix the code 11?

I would do like AJ said and clear the codes by pulling the EFI fuse for 30 sec. Drive the car and check codes again.

 

[PlatinumTracks]

What did you do to fix the code 11?

I would do like AJ said and clear the codes by pulling the EFI fuse for 30 sec. Drive the car and check codes again.

I cleaned the grounds and reset the ecu thats how i cleared it.....


but now im getting 22 and 52....
would cleaning the grounds work for that also..?

and would a short in my ignitor cord cause my car to act crazy...?

 

[jdub]

Yep, that usually fixes it
Cleaning the other grounds will not help the remaining codes.

A short in any of the ignition wires needs to be fixed ASAP.

I would fix the code 52 after that...the car will run like crap because with this code present, the ECU pulls a big chunk of timing. It's one of two things:
- The knock sensor is bad
- Wiring to the knock sensor is not properly grounded. (most likely)

Do a search in the Articles section for knock+sensor...there's a guide on how to do the rewire. Or, you can PM Shaeff...he makes a rewire kit for the knock sensors.

Code 22 is the ECU coolant temp sensor...look at this:

I would check the wiring and connector 1st. This page shows how to test the sensor:
http://www.cygnusx1.net/supra/Library/TSRM/MK3/manual.aspx?Section=FI&P=113

Basically, you heat the sensor in a pot of water measuring temperature...resistance should be per the chart. Key temps are 176 and 212 degs F. (normal ops range)

 

[AJ'S 88NA]

What did you do to fix the code 11?

I would do like AJ said and clear the codes by pulling the EFI fuse for 30 sec. Drive the car and check codes again.

You're slipping jdub...you said that

 

[jdub]

Sometimes I do think I'm losing my mind.

(Must be an echo in here...LOL)