Crazy Fuel Pressure or The Car Won't Run...?

Discuss topics related to the CA18DE and CA18DET series engines.
User avatar
rico05
Posts: 6895
Joined: Mon Jun 23, 2003 6:52 am
Car: 1992 RMS13 w/ CA18DET
Contact:

Post

So I was bored and a little drunk last night and I decided to go fiddle with the car. Well, I was playing with the fuel pressure and I noticed that the car will not idle at anything under about 40psi, idle, vac line hooked up. WTF. That is real high. And the car is running real rich. Like, if I really get on it, partial boost is quite rich and WOT is just fine. Any thoughts?

No boost leaks that I can find. Clean MAF. No codes. Good grounds. Newer IACV. Nismo FPR. NGK iridium 6 range plugs. Thanks guys.


boost_boy
Posts: 7051
Joined: Thu Nov 14, 2002 7:28 am
Car: B12 sentra w/built CA18DET, B12 sentra w/fully-built CA18DET, S13 coupe w/ CA18DET, S13 hatch w/CA18DET, 2002 maxima SE
Location: Miami, FL.
Contact:

Post

rico05 wrote:So I was bored and a little drunk last night and I decided to go fiddle with the car. Well, I was playing with the fuel pressure and I noticed that the car will not idle at anything under about 40psi, idle, vac line hooked up. WTF. That is real high. And the car is running real rich. Like, if I really get on it, partial boost is quite rich and WOT is just fine. Any thoughts?

No boost leaks that I can find. Clean MAF. No codes. Good grounds. Newer IACV. Nismo FPR. NGK iridium 6 range plugs. Thanks guys.
Regulator has a faulty diaphram or fuel pump is going bad. I'm voting regulator because they do fail as I've had mine fail as well. Yes, the NISMO fpr is not bulletproof .

Dee

User avatar
rico05
Posts: 6895
Joined: Mon Jun 23, 2003 6:52 am
Car: 1992 RMS13 w/ CA18DET
Contact:

Post

Hunh. That sucks. Thanks Dee.

Any thoughts on how to test the bugger?

User avatar
ca18detgabby
Posts: 3329
Joined: Sat Feb 10, 2007 5:31 pm
Car: 92 Nissan S13 ca18det SOLD
03 Infiniti G35
Location: lake Mary FL
Contact:

Post

the FPR is universal to nissan....... you could always try it on another nissan.... Another CA would be ideal.

didnt you help your friend do a CA swap too?

User avatar
rico05
Posts: 6895
Joined: Mon Jun 23, 2003 6:52 am
Car: 1992 RMS13 w/ CA18DET
Contact:

Post

No. He has the CA just not in the car yet. He is taking his time rebuilding it.

User avatar
r34 gtr
Posts: 8909
Joined: Sun Dec 29, 2002 9:33 am
Car: 98 Nissan Frontier XE 4x4
95.5 Audi URS6 Avant 5spd
03 BMW 330i ZHP 6spd
89 Nissan 240SX base CA18DET
Location: Creepin' in your crawl space
Contact:

Post

Ive got a good stock FPR if you want to try it. Just holler at me and I'll send it your way.

User avatar
rico05
Posts: 6895
Joined: Mon Jun 23, 2003 6:52 am
Car: 1992 RMS13 w/ CA18DET
Contact:

Post

Shoot me an email and I'll let ya know.

rjnovak05 AT yahoo

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

Have you repeated this test sober?

User avatar
rico05
Posts: 6895
Joined: Mon Jun 23, 2003 6:52 am
Car: 1992 RMS13 w/ CA18DET
Contact:

Post

Yes Ryan haha.

User avatar
r34 gtr
Posts: 8909
Joined: Sun Dec 29, 2002 9:33 am
Car: 98 Nissan Frontier XE 4x4
95.5 Audi URS6 Avant 5spd
03 BMW 330i ZHP 6spd
89 Nissan 240SX base CA18DET
Location: Creepin' in your crawl space
Contact:

Post

Email is for p******. I prefer straight up forum pwnage. If I am not at school, I never check that crap.

User avatar
rico05
Posts: 6895
Joined: Mon Jun 23, 2003 6:52 am
Car: 1992 RMS13 w/ CA18DET
Contact:

Post

Well what the hell Tim, lol. I ain't giving you my phone number. I don't want you drunk dialing me at 3am like you do Ryan, lol.

User avatar
r34 gtr
Posts: 8909
Joined: Sun Dec 29, 2002 9:33 am
Car: 98 Nissan Frontier XE 4x4
95.5 Audi URS6 Avant 5spd
03 BMW 330i ZHP 6spd
89 Nissan 240SX base CA18DET
Location: Creepin' in your crawl space
Contact:

Post

Fair enough, I don't think its really necessary for sending you a small part via the USPS.


Return to “CA18DE / CA18DET Forum”