2000 RPM max

roger01 · Monday at 15:50

Hi I've had a 2001 2.5 HDSE auto for many years, been laid up maybe 4 years or so (leaky airsprings and fuel pump playing up) although not on the road always fired up and shunted up and down the drive every few months. Finally got around to replacing the air springs, OH the brakes, new pump in the tank fuel flter etc, probably with being sat lopsided for a while the EAS was locked out so no go from the ride hight button/switch and the max speed message on the dash, reset with RSW and fine, message gone, EAS up and down at the push of a button and stays up for weeks, still fires up at the first touch but doesn't want to rev above 2000 rpm, cleaned the MAF and the EGR to make sure nothing was sticking/clogged but still flattens out at 2k, she's no longer a daily driver (got a 322 for that) just like to get the old girl back on the road, she's family, any suggestions/help would be greatly appreciated.

Rubberknees · Monday at 16:00

roger01 said:
Hi I've had a 2001 2.5 HDSE auto for many years, been laid up maybe 4 years or so (leaky airsprings and fuel pump playing up) although not on the road always fired up and shunted up and down the drive every few months. Finally got around to replacing the air springs, OH the brakes, new pump in the tank fuel flter etc, probably with being sat lopsided for a while the EAS was locked out so no go from the ride hight button/switch and the max speed message on the dash, reset with RSW and fine, message gone, EAS up and down at the push of a button and stays up for weeks, still fires up at the first touch but doesn't want to rev above 2000 rpm, cleaned the MAF and the EGR to make sure nothing was sticking/clogged but still flattens out at 2k, she's no longer a daily driver (got a 322 for that) just like to get the old girl back on the road, she's family, any suggestions/help would be greatly appreciated.

Disconnect the MAF and try it. The MAF will run on default settings. Don't try using one of the cheap import replacements as not very good and don't last long. In my experience cleaning has not always worked. I've run with MAF disconnected for without mishap until a OEM has been sourced 2nd hand

Datatek · Monday at 16:01

roger01 said:
Hi I've had a 2001 2.5 HDSE auto for many years, been laid up maybe 4 years or so (leaky airsprings and fuel pump playing up) although not on the road always fired up and shunted up and down the drive every few months. Finally got around to replacing the air springs, OH the brakes, new pump in the tank fuel flter etc, probably with being sat lopsided for a while the EAS was locked out so no go from the ride hight button/switch and the max speed message on the dash, reset with RSW and fine, message gone, EAS up and down at the push of a button and stays up for weeks, still fires up at the first touch but doesn't want to rev above 2000 rpm, cleaned the MAF and the EGR to make sure nothing was sticking/clogged but still flattens out at 2k, she's no longer a daily driver (got a 322 for that) just like to get the old girl back on the road, she's family, any suggestions/help would be greatly appreciated.

Unplug the MAF and see if it is different, also check the MAP sensor. Needs diagnostics, could be in limp mode due to a duff sensor or corroded connector.

backinblack · Monday at 16:19

Had this on a Disco TD5 due to low battery volts to ecu.

RangeRoller dt · Monday at 17:36

Maybe pipe has split to MAP on inlet manifold. When checking be extra careful not to snap the spigot it goes onto they can get weak.

2000 RPM max

roger01

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Rubberknees

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Datatek

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backinblack

Well-Known Member

RangeRoller dt

Well-Sprung Member

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