Hey guys, I made a similar post a few weeks ago on preludezone but didn't get much help. The problem just went away so I let it be. 3 days go by and today it's starts running like crap again except this time I get codes!

3 - MAP
6 - ECT
14 - IACV
16- Fuel injection system
23 - knock sensor (this has been coming on above 3k rpms for a while, I don't think it's related)
43 - Fuel supply system


I also have a phearable ecu. When I plug that in, the idle stabilizes mostly, but under heavy acceleration (in neutral) it hesitates bad and tries to die.

With the phearable, I think the idle is still a little rough because of how it times my engine. It's a basemap tuned ecu (that's why I didn't have it installed). With the phearable, I only get one code

6 - ECT

When I unplug the ECT, I get plumes of black smoke (expected) which tells me it has to be doing some of its job?

I'm thinking bad ecu, bad ground, or bad ECT (which is 2 years old).

I really need a better idea. This problem has been intermittent up to this point and may still be. I can provide videos if anyone wants.

Thanks for your help!

 

I have a hard time believing you're getting all those codes all of the sudden. What happens when you put a stock ecu in ?

 

That is coming from the stock ecu. The phearable chipped ecu only gives me one code (ECT). Also, the phearable has the knock sensor disabled, so that's why that codes goes away.

I've been running on my phearable since yesterday morning and it runs pretty well for a basemap. Kinda pointing towards my stock ecu being toasted, right?

 

that would be my guess ... do the k-test check for 5v reference on the map sensor and tps sensor connectors with the ignition on car off