Help! check engine light alwasy come up in cold

[pwpanas]

Originally Posted by 2JZDU

hi mate, I need your help again. Today I found my check engine will on if I drive over 140Km/h, but if I shut it down and restart the engine, the light will go away, I think might be a false o2 sensor. Anyway I try to diagnostic what the problem really was, but the weird thing happen.

engine light flash once, after one second, it keeps flash 4 times quickly, after one second, it flash two times more quickly as well, then go back to beginning.

I looked up the table and I couldn't find any condition of 2,


do you have any ideas what that was? I am very appreciated.

One of the two codes appears to be 14, right?. Let's start with that:

14

Ignition Signal

No IGF signal to ECM for 4~7 consecutive IGT signals with engine speed less than 3,000 rpm.

• Open or short in IGF circuit from igniter to ECM
• Igniter
• ECM

ONn/a

Yes

It seems you may have a problem with your igniter. Did you ever get a TSRM for your Supra?

Also, please re-check those codes. I don't think it's possible for the ecm to give a single-digit code. Perhaps it's 22?