2000 Volvos S80 misfire

[draser]

At this point can you hook up a scanner and read engine parameters to get more info?

[jaru]

I will see if I can get some info with the scanner

[jaru]

Is anybody out there who knows whether a bad ABS Module would shut down the engine, or to a point where the engine will only idle?

[Matty Moo]

Is anybody out there who knows whether a bad ABS Module would shut down the engine, or to a point where the engine will only idle?

Nope, it doesn't have any bearing on engine management. The only time the abs has any say in the matter is when the traction control kicks in and retards the throttle.

[jaru]

Hello, I finally got a decent OBD2 scanner and here are some parameters, which I hope someone out there can help me with it:
ABSLT TPS 27.8%
CALL LOAD 9.8%
COOLANT 21. CELSIUS
ENG SPEED RPM 729
FUEL SYS1 OPEN
FUEL SYS2 OPEN
IAT 28 CELSIUS
IGN ADV 1.5
LT FTRM1 3.9%
LT FTRM2 2.3%
MAF gr/S 12.5
MIL DIST 0
MIL STATUS OFF
02S12 (V) 0.435
02S22 (V) 0.435
OBD2 STAT CA
ST FTRM1 0.0%
ST FTRM2 0.0%
VEH SPEED

[jaru]

Hello again, forgot to ask what does fuel sys 1 open and fuel sys 2 open mean.
I replaced the fuel filter and while doing that I check the fuel pump. It seemed to me that the pump was working fine. The pressure at the fuel rail was above 50 psi. I checked also each injector individually by applying 12VDC to them and spraying fluid through them. They all work as well.Usually I can keep the car running in idle for a long time, but it will die as soon as I give it gas. I don't get any DTC anymore and so far have been unable to retrieve any freeze frames.

[draser]

Please take another set of readings fully warm, this one shows 21deg. Celsius. You should be at 90-100 deg. Fuel system open is because engine's cold and operates in open loop. Only thing that I believe is off in these readings is MAF which is high even though idle is at 740. Perhaps someone else could chime in with their reading to compare.

[jaru]

HERE ARE SEVERAL READINGS WITH WARM ENGINE:
ABSLT TPS 31.1% ABSLT TPS 21.6% ABSLT TPS 20.4%
COOLANT 106 CELSIUS CALC LOAD 5.5% COOLANT 99 CELSIUS
CALC LOAD 14.1% COOLANT 104 CELSIUS CALC LOAD 6.3%
ENG SPEED 1498 RPM ENG SPEED 577 RPM ENG SPEED 749 RPM
FUEL SYS 1 CLSD FUEL SYS 1 CLSD FUEL SYS 1 CLSD
FUEL SYS 2 OPEN FUEL SYS 2 OPEN FUELS SYS2 OPEN
IAT 76 CELSIUS IAT 66 CELSIUS IAT 69 CELSIUS
IGN ADV 36.5 IGN ADV 3.5 IGN ADV 5.0
LT FTRM1 -0.8% LT FTRM1 -0.8% LT FTRM1 -0.8%
LT FTRM2 -0.8% LT FTRM2 -0.8% LT FTRM2 -0.8%
MAF (GR/S) 13.75 MAF 6.25 MAF 11.25
MIL DIST 0 MIL DIST 0 MIL DIST 0
MIL STATUS OFF MIL STATUS OFF MIL STATUS OFF
O2S12 (V) 0.000 02S12 (V) 0.000 02S12 (V) 0.110
O2S22 (V) 0.020 02S22 (V) 0.020 02S22 (V) 0.035
OBD2 SAT CA OBD2 SAT CA OBD2 SAT CA
ST FTRM1 17.2 % ST FTRM1 29.7% ST FTRM1 -3.1%
ST FTRM2 0.0% ST FTRM2 0.0% ST FTRM2 0.0%
VEH SPEED 0 VEH SPEED 0 VEH SPEED 0


Thanks for any help!

[jaru]

I attached a doc with the engine readings

[draser]

The only thing I see if MAF being very high, rule of thumb is 1g per liter displacement. I am getting 2.7 for my 2.5 liter engine, so you should be at about 3 g/s at idle fully warm. I was hoping we'd get anothet reading from a member. I'd also try a throttle swipe test.