S13 Ca18det horsham stage 2 chip running rich

[Ritchievdv]

Hello,

i bought the car with stage 3 setup then decided to change it to stage 2 but its very rich it goes on boost to 10.00 , my engine compression is 10 10 9.5 9 Bar
and the leaktest 20 18 15 10, few people told me to go Stand alone ecu but is it worth it with this compression and leak? The engine runs just fine no smokes or anything

 

[r3k1355]

Did you change the fuel injectors and AFM when you put the stage 2 chip in it?

 

[Ritchievdv]

Did you change the fuel injectors and AFM when you put the stage 2 chip in it?

Yes all original parts

 

[r3k1355]

What about the fuel pressure regulator? OEM part or an aftermarket?

 

[Ritchievdv]

What about the fuel pressure regulator? OEM part or an aftermarket?

Also Oem i got 0.85 boost 2560R

 

[r3k1355]

Check the spark plugs, they should be NGKBCPR7ES, check the gap is 0.8-1.0mm

Run thought the CA18DET Injection manual, check the sensors and replace if needed. Coolant Temp Sensor can make the car over fuel if it's faulty.

Check for boost leaks, pressure check the system to check nothing is opening up when it comes on boost

Send the fuel injectors to be flow tested and rebuilt, you may have an injector stuck open, original parts are pretty old now.

 

[Ritchievdv]

Check the spark plugs, they should be NGKBCPR7ES, check the gap is 0.8-1.0mm

Run thought the CA18DET Injection manual, check the sensors and replace if needed. Coolant Temp Sensor can make the car over fuel if it's faulty.

Check for boost leaks, pressure check the system to check nothing is opening up when it comes on boost

Send the fuel injectors to be flow tested and rebuilt, you may have an injector stuck open, original parts are pretty old now.

Okay thanks!

 

[Ritchievdv]

One of them is cracked might be the issue for being to rich in boost? On idle and normal driving it isnt rich

 

[r3k1355]

Damaged pintle caps might give bad spray pattern but probably not rich running.

Send the injectors to be cleaned and flow tested, you'll get new pintle caps and you can see if one of them is stuck open. That will cause rich running.

 

[Ritchievdv]

Damaged pintle caps might give bad spray pattern but probably not rich running.

Send the injectors to be cleaned and flow tested, you'll get new pintle caps and you can see if one of them is stuck open. That will cause rich running.

Yeah its only boost so, i have been looking to buy a new temp sensor but i can also hear something hissing between inside redline on picture

 

[Ritchievdv]

 

[r3k1355]

Idle air control valve. If it's leaking, it's probably not controlling your idle mixture properly.

That hose isn't stock is it pinched or kinked at all?

 

[Ritchievdv]

Idle air control valve. If it's leaking, it's probably not controlling your idle mixture properly.

That hose isn't stock is it pinched or kinked at all?

Most of them arent stock anymore but they are not leaking! Yeah the idle is sometimes good and sometimes lean when applying a little bit of gas it comes back to normal but not always