volvo d12 egr

A '99 should be pre EGR.

 

'99 is pre EGR, it is D12C Euro-II engine... yep, calibrations like in EU engine, I sugest 420 HP.

There are three things make Volvo loose power.

1. Bad injectors. How to test? if you have no VCADs pro software, you cant check cylinder ballance, but you can use instrumental cluster to get l/hour fuel consumption at idle. With park brake released (no EPG is applied, becouse when you apply park brake ECM applies EPG to warm engine up and save heat) and compressor disabled (pressure is fully built) must be 1.5-2.0 l/hour, if more - injectors inject less fuel you need, from 3 ore more l/hour engine starts with ether only.

2. Boost pressure leak - volvo do not use crankcase vent to inlet so no oil in point of leak, so use pressure test.

3. Worn engine, bad compression... yeah, you need VCADs pro to check... toasted valves is a problem of Volvo engines.. and no noise, no oil consumprtion.

 

Volvo use to install all filters in filter block, one for EU ore two filters for bad fuel areas. Filters may be heated, may be not, all depend on market and customer.

 

about your miss, did you get low fuel delivery pressure codes? check MID 128 (Engine ECM) for stored codes

 

you will know is it low fuel pressure issue ore something else

 

MID 128 PID 105 Intake Manifold Temperature - limited power, less MPG, miss
PID 172 Air Inlet Temperature - wrong reading


PID 100 Engine Oil Pressure
SID 231 SAE J1939 Data Link
SID 021/022 - EPS (engine pos sensor)
SID 004 - cyl #4 missfire

http://www.volvo.com/NR/rdonlyres/9...MID128FaultcodeGuide2007EmissionsVNVHD2VT.pdf

Use this guide

as you can see, no EGR codes