96 1mzfe random codes - bad ecu?

[casey38boost]

Hi,

I recently picked up 96 es300 with the 1mz-fe v6, it came with code p0330 knock sensor bank 2. I rewired the knock sensors at the ecm so both would feed off bank 1 sensor and every thing seems fine for a while.

Cleared codes , and code p0125 was present cleared it.

Changed valve cover gaskets front and rear.

Drove car and code p0770 came up, trans shift solenoid E. I flushed transmission and reset code, came back up about 5 min of driving p0770 and a p0401 egr insufficient flow.

Do u think the engine computer might be bad or a bad ground? The trans shifts fine but it still through the p0770 code.

The engine harness someone who previously owned the car was poking around, i could see the knock sensor harnesses were pryed into.


It just dosen't make sense that these random codes pop up one after another with nothing aparent wrong to the car. I will double check all EGR and vaccum lines, but u think it might be a BAD ECU ?

any help appreciated.

[Eye8Pussies]

doubtful....I'd check the wiring harness first. if it was a bad ecu, the codes that would pop would most likely be random- and more so, not the codes that the 1mz-fe quite often ends up throwing due to common serviceable parts- i.e. knock sensor, coolant sensor, egr, etc.

the solenoid code is less common, but on our cars, when it throws a tranny code, it's usually the solenoid E code as well.

sounds more like you just picked up an old car that needed some work

[casey38boost]

I am going to look at the egr lines and see if i reversed any of them.

but mostly i am concerned about the solenoid E code.

I guess i can get the solenoid then check the wiring in the pan and see whats happening.

thanks for the advice

Casey