Power Fc D-jetro Problem

[SimonR32]

Went in for a tune of my RB26 the other day and had lots of problems...

Most are a easy fix but one niggling on is the fact that my d-jetro map sensors are bottom lining at 20psi and I'm told that they generally max out at 26psi...

Any ideas why this is happening?!?

Cheers

Simon

[STATUS]

where is the pressure source taken from? i have had issue's when not taking the source from the actual throttle bodys (bit of a pain but worth the effort)... hooking up to the balance bar tends to cause a few issues.

[SimonR32]

where is the pressure source taken from? i have had issue's when not taking the source from the actual throttle bodys... hooking up to the balance bar tends to cause a few issues.

the intake manifold just before the throttle bodys?!?

Edited October 25, 2007 by Cerbera

[Butters]

Correct me if I am wrong but they are supposed to be in the main plate behind the throttle bodies and just before the head.

[STATUS]

the intake manifold just before the throttle bodys?!?

before head and butterflies or between plenum and butterflies? it should be between head and throttle plates as shown in install manual.

[jonn]

Mine are between the tb's and head. No problems

[SimonR32]

i cant remember exactly ill check tonight

[paulr33]

how are you determining they are maxing out ?

do you see PIM1 hit 5v?

do you see something else?

[SimonR32]

how are you determining they are maxing out ?

do you see PIM1 hit 5v?

do you see something else?

tracer on datalogit was on the bottom line

[paulr33]

ah yeah so thats the scale then and correction

that doesnt mean your maxing the map sensors

have you got a data log of the run?

check out what voltage PIM1/PIM2 get to, if they hit 5v they are maxing

[SimonR32]

i may be able to get a data log of the runs...

[rockabilly]

here is where mine are if it helps..

[SimonR32]

they are in the exact place where the power fc instruction manual says they should be

just after throttle boddies in the inlet manifold

[SimonR32]

any other ideas?!?

[R34NRG]

sorry to hijack ur thread cerbera but i thought since ur on the topic of D jetro's i got a quick simple question.

they only made these for the GTR right? aint none of these got GTST or GTTs?

[Gav]

You can modify the ECU loom for the R33 GTST to be able to use the D-Jetro. I Don't know if this is the same for the R34 GTT (probably depends on the ECU plug shape as much as anything).

[paulr33]

any other ideas?!?

did you see my last post?

is PIM1/PIM2 actaully maxing at 5v?

[SimonR32]

yeah im waiting on tuner to get back to me with answer

[STATUS]

You can modify the ECU loom for the R33 GTST to be able to use the D-Jetro. I Don't know if this is the same for the R34 GTT (probably depends on the ECU plug shape as much as anything).

yeah RB26 D-Jetro can be used in R32, R33 and Z32 (300zx) but R34 GTT has a totally diff ecu plug.

[SimonR32]

did you see my last post?

is PIM1/PIM2 actaully maxing at 5v?

took stupid thing for a drive last night and boosted in 3rd gear to 23psi and the PIM voltage read 4.867V

this was only just on boost as the car is only rwd at the moment and likes to smoke 265's when it comes on boost and female passengers tend to get scared!!!

is this classified as close enough to 5V?!? maxing out?!?