EGR Blank causing limp mode

[Ozmerican]

I've been trying to search the forum with no luck to see if anyone else had this issue.

I recently installed a dawes valve kit, erg blank and 3" exhaust. When driving at highway speeds with a steady pedal the Patrol would go into a "temp" limp mode. After coming off the pedal for a sec and back on it would go just fine. Through investigating I noted the boost would come up to quickly for the Dawes kit compensate but it would still occur. It was only after removing the blanking plate would the valve kit work correctly.

The blanking plate that I purchased did not have the hole as I had seen in others, but based on the position the instructions indicated for it install it didn't cause the dummy light to come on, so thought all is good.

Any ideas as to what is causing this? I currently to not have blanking plate in and would like to put it back. Should I put a hole in it to allow some recirculation?

[Clunk]

Bump...........

[Bigcol]

sorry Ozmerican...... as you know, mines a 4.2
so I wouldn't know shyte from clay with a 3.0.......

hopefully someone like Nizzbits can help? maybe....?

[macca86]

I've heard if it's a crd zd30 you need the hole drilled in or a scan guage to stop limp modes

[Sir Roofy]

Try backing the dawes off a bit at a time sounds like your a tad of the sweet spot

[threedogs]

Whats your max boost reaching ?
DO what I did and put a permanent texta mark on the dawes.
Grab a pad and pen, adjust your boost,noting what you did.
If its hitting 15PSI if thats your max quickly,,,,, open the needle 1/2 a turn writing it down.
Takes a little while but you'll get there, grab two spanners and go for a drive

[the evil twin]

I've heard if it's a crd zd30 you need the hole drilled in or a scan guage to stop limp modes

Nah, blanking plate EGR codes on the CRD's only set the check engine light.
They won't cause limp mode so drilling the hole or clearing the fault is only to stop the check engine light.


As posted by Roofy I think the problem is the Dawes and Needle needs tweaking.

[threedogs]

Do you have gauges fitted???

[kevin07]

Nah, blanking plate EGR codes on the CRD's only set the check engine light.
They won't cause limp mode so drilling the hole or clearing the fault is only to stop the check engine light.


As posted by Roofy I think the problem is the Dawes and Needle needs tweaking.

there is no mention of a needle valve so if there isnt one you need one to adjust up the spool rate so pm mudski for that or the evil twin has a different way to adjust the turbo actuator so ask him for his knowledge on the subject

[mudski]

No mention of what his max boost is too. Need to know this before you do anything. But my guess is a needle valve would be handing here to help drop the cruising boost pressures. Not only does the needle valve adjust spool up rate, it in turns increases or decreases your cruising boost pressure.