Stupid Question

Discuss topics related to the CA18DE and CA18DET series engines.
scato
Posts: 34
Joined: Mon May 21, 2007 8:29 am

Post

*Flame Suit On*

on my stock CA if i wanted to run High impedance injectors what would i have to do? just unplug the resistor box? Unplug and add different resistors?


User avatar
Frankenfourty
Posts: 172
Joined: Sun Jul 26, 2009 5:16 pm
Car: 1989 240sx CA18DET

Post

I think you can just remove the resistors. Can I ask why you would want to run high impedance injectors? Just curious.

scato
Posts: 34
Joined: Mon May 21, 2007 8:29 am

Post

i found a really good deal on some injectors. there top feed, but high impedance


User avatar
float_6969
Moderator
Posts: 17366
Joined: Mon Aug 26, 2002 1:55 pm
Car: CA18DET swapped 1995 Nissan 240sx (too many mods to list)
2015 SV Leaf w/QC & Bose (daily)
Location: Topeka, Kansas
Contact:

Post

You can't just remove the resistor box, but if you use the FSM you could figure out how to eliminate it. Basically there are 5 wires. 1 is 12v+ and the other 4 go to the injectors. You'll need to connect all 4 wires to the 1 wire. Then you could install the injectors.

Even with all of that done, I seriously doubt it will run right. There are parameters programmed into the ECU that correct for injector latency. The injector latency for high impedance and low impedance injectors are different. In fact, the injector latency can vary greatly from individual injectors if they are a low quality, un-matched set.

My bet is that you would also have to chip the ECU and correct the injector latency (also called injector blast off time IIRC) to get it to run correctly.

I've never done this, so I don't know for sure, so don't do this just because I said so. I'd do some more research. Maybe contact a company that sells injectors like http://www.deatschwerks.com


Return to “CA18DE / CA18DET Forum”