Turbo Pressure Sensor

[HowardSmall]

I have been told that the cause of my performance problems is likely to be the turbo pressure sensor which costs about $60. I cannot find such a beast in the RAVE documentation - can anyone tell me what it is described as in the Land Rover documentation and where it is located?

Thanks

Howard

[mools]

If its a td5, and I don't know if it is, it is in the inlet manifold, next to where the dip stick is. In RAVE it will be referred to as the manifold absolute pressure (or MAP) sensor. Take it out and try cleaning it before replacing. Didn't you just clean your inlet manifold or am I thinking of someone else?

Ian

[OffTrack]

There are two sensors used to calculate boost - AAP (ambient air pressure) sensor which on the D2 at least is located on the side of the air filter box. The second is as Mools says the combined Manifold Absolute Pressure (MAP)/Inlet Air Temperature (IAT) sensor located on the inlet manifold. The MAP/IAT is probably the most critical sensor for determining fuelling requirements so don't skimp if you replace this part. The LR part number is MHK100640 and these cost around $150 for a genuine part.

I think you posted elsewhere that both the MAF and the IAT were reading close to zero. Either you've been extremely unlucky with sensor failures OR the engine harness has rubbed through at some point between the ECU and the two sensors.

http://www.aulro.com/afvb/electronic-diagnostic-systems/168834-nanocom-evo-2-question-post1858113.html#post1858198

[HowardSmall]

"The LR part number is MHK100640 and these cost around $150 for a genuine part." or $217 if you buy it in Cairns!

Think I need to shop around...

Howard

[HowardSmall]

Fitted a new sensor three days ago and the performance problems have gone. Hope this remains the case as I had been going nuts for ages with this.

Howard

[mools]

Glad to hear it. I know what a pain a poorly running engine is and I know what a pleasure a neatly running one brings. Hope it stays that way for you.

In.

[Graeme]

I always carried a spare MAP sensor, one that was cleaned after removal. I also carried a can of spray cleaner to clean the IAT sensor for when driveability got too bad to leave cleaning until I got back home.

[HowardSmall]

Is that because they do fail reasonably often; because you carry an extensive range of parts; or because the impact of failure is so significant?
Howard

[Graeme]

Primarily because the impact was so significant and restoring the driveability was sufficiently quick and easy.