Help or advice please.

[hellraiser]

Hello,
I've got a 1996 855 t5 auto with a Rica 304 remap.
I've got a little problem which I need some help with.
Today my engine management light came on, but all seemed well until later in the day when it started loosing all power from pulling off from stand still, but then it will pick up once I put my right foot down.
Then its fine for a few miles but then it plays up again, also it will splutter on full boost then clear again.

Now to the bigger problem, I've got access to a snap-on scanner which will not connect & also the bosch kts 570 laptop/scanner which also couldn't connect (could this be down to the remap?).

Now I'm unsure what to do?

All advice appreciated!

[Johnny5]

Hiya. Have you tried to read the codes from the diagnostic plug/button?

Link to how to is here..... http://au.geocities.com/OZBRICK850/computercodesvolvo.html#instructions

List of codes here ......
This table may be used as a reference for interpreting your Volvo vehicle's computer messages.
If codes other than these are indicated, repeat self-diagnosis. If codes reappear, substitute a known good ECU, and recheck codes.


CODE Fenix 5.2 System
PROBABLE CAUSE for Volvo vehicles
1-1-1 No faults
1-1-2 ECU faulty
1-1-3 Fuel injectors; From 1994 and later, Heated oxygen sensor - maximum enrichment sensed
short term fuel mixture too weak
1-1-5 Injector no. 1 cylinder faulty signal
1-2-1 Manifold Absolute Pressure (MAP) signal absent or faulty
1-2-2 Air Temperature sensor signal absent or faulty
1-2-3 Coolant temperature sensor signal absent or faulty
1-2-5 Injector no. 2 cylinder faulty signal
1-3-1 Ignition System RPM signal
1-3-2 Battery voltage too low/high
1-3-3 Throttle switch signal (idle)
1-3-5 Injector no. 3 falty signal
1-4-2 ECU faulty
1-4-3 (front) knock sensor signal missing or sensor defective
1-4-4 Fuel system load signal (missing or defective)
1-4-5 Injector no. 4 cylinder faulty signal
1-5-2 air pump valve signal absent or faulty (only on some emission controlled vehicles)
1-5-3 Rear heated oxygen sensor signal
1-5-4 EGR system - leakage or excessive flow
1-5-5 Injector no. 5 cylinder faulty signal
2-1-2 heated oxygen Sensor Signal (front sensor on 1994 and later models) absent or faulty
2-1-3 Throttle switch signal (wide-open)
2-1-4 Ignition rpm sensor signal erratic, absent or faulty
2-2-1 Lambda Operation; also Heated oxygen sensor (mixture too rich under part throttle)
/ long term fuel mixture too weak in part load stage
2-2-2 Main relay signal absent or faulty
2-2-3 Idle air control valve signal absent or faulty
2-2-4 Coolant temperature sensor signal
2-2-5 A/C pressure sensor signal absent or faulty
2-3-1 Lambda adjustment; For 1994 and later, heated oxygen sensor (mixture too lean under part throttle)
/ long term fuel mixture too rich in part load stage
2-3-2 Lambda adjustment; For 1994 and later, adaptive heated oxygen sensor control
/ long term fuel mixture too weak at idle
2-3-3 Idle valve - closed or intake air leak / long term idle air trim outside control range
2-3-4 Throttle switch signal missing
2-4-1 EGR malfunction
2-4-5 Idle air control valve - closing signal
3-1-1 Speedometer signal
3-1-2 Knock/Fuel enrichment signal missing
3-1-4 Camshft position sensor signal missing or defective
3-1-5 EVAP emission control system
3-2-1 Cold start valve - signal missing
3-2-2 Airflow meter hot wire
3-2-4 Camshaft position sensor signal erratic
3-2-5 ECU memory failure
3-3-5 TCM request for MIL (CHECK ENGINE light)
4-1-1 Throttle switch signal faulty or missing
4-1-3 EGR temperature sensor signal incorrect or missing
4-1-4 Turbo boost regulation
4-1-6 Turbo boost reduction from TCM
4-2-5 Temperature warning level no. 1
4-3-1 EGR temperature sensor faulty or missing
4-3-2 High temperature warning inside ECU
4-3-3 No rear knock sensor signal
4-3-5 Front heated oxygen sensor - slow response
4-3-6 Rear heated oxygen sensor compensation
4-4-3 Catalytic converter efficiency
4-4-4 Acceleration sensor signal
4-5-1 Misfire cylinder no. 1
4-5-2 Misfire cylinder no. 2
4-5-3 Misfire cylinder no. 3
4-5-4 Misfire cylinder no. 4
4-5-5 Misfire cylinder no. 5
5-1-1 Adaptive oxygen sensor control, provides leaner mixture at idle
5-1-2 Oxygen intergrator at maximum lean running limit
5-1-3 High temperature warning inside ECU
5-1-4 Engine cooling fan - low speed signal faulty
5-2-1 Oxygen sensor preheating front
5-2-2 Oxygen sensor preheating rear
5-3-1 Power stage - group A
5-3-2 Power stage - group B
5-3-3 Power stage - group C
5-3-4 Power stage - group D
5-3-5 TC control valve signal
5-4-1 EVAP valve signal
5-4-2 Misfire on more than one cylinder
5-4-3 Misfire on at least one cylinder
5-4-4 Misfire on more than one cylinder, catalyic converter damage
5-4-5 Misfire on at least one cylinder, catalyic converter damage
5-5-1 Misfire on cylinder no. 1, catalyic converter damage
5-5-2 Misfire on cylinder no. 2, catalyic converter damage
5-5-3 Misfire on cylinder no. 3, catalyic converter damage
5-5-4 Misfire on cylinder no. 4, catalyic converter damage
5-5-5 Misfire on cylinder no. 5, catalyic converter damage


CODE Motronic 4.3 System
PROBABLE CAUSE for Volvo vehicles
1-1-2 ECU faulty
1-1-5 Injector no. 1 cylinder faulty signal
1-2-1 MAF signal absent or faulty
1-2-3 Coolant temperature sensor signal absent or faulty
1-2-5 Injector no. 2 cylinder faulty signal
1-3-1 Ignition System RPM signal absent or faulty
1-3-2 Battery voltage too low/high
1-3-5 Injector no. 3 faulty signal
1-4-3 (front) knock sensor signal missing or sensor defective
1-4-4 Fuel system load signal (missing or defective)
1-4-5 Injector no. 4 cylinder faulty signal
1-5-2 air pump valve signal absent or faulty (on certain engines)
1-5-4 EGR system - leakage or excessive flow (on certain engines)
1-5-5 Injector no. 5 cylinder faulty signal
2-1-2 heated oxygen Sensor Signal absent or faulty
2-1-4 Ignition rpm sensor signal intermittently absent
2-2-3 Idle air control valve signal absent or faulty
2-2-5 A/C pressure sensor signal absent or faulty
2-3-1 Long term fuel mixture too lean or rich in part load stage
2-3-2 long term fuel mixture too lean or rich at idle
2-3-3 long term idle air trim outside control range
2-3-5 EGR controller signal absent/faulty (on certain engines)
2-4-1 EGR flow fault (on certain engines)
2-4-3 throttle position sensor signal voltage incorrect (out of range)
2-4-4 knock control at limit
2-4-5 Idle air control valve closing signal faulty/absent
3-1-1 Speedo signal missing
3-1-3 EVAP valve signal absent/faulty (on certain engines)
3-1-4 Camshft position sensor signal missing or defective
3-1-5 EVAP emission control system fault (on certain engines)
3-2-3 Malfunction indicator lamp signal faulty
3-2-5 ECU memory failure
3-3-5 request for Malfunction indicator lamp signal from auto transmission ECU
3-4-2 airconditioning relay control signal fault
3-4-3 fuel pump relay control signal fault
4-1-1 Throttle position sensor signal not within correct voltage
4-1-3 EGR temperature sensor signal incorrect or missing (on certain engines)
4-1-4 Turbo boost pressure too high
4-1-6 Turbo boost reduction from auto transmission ECU(/TCM)
4-3-2 High temperature warning inside ECU
4-3-3 rear knock sensor signal absent/faulty
4-3-5 heated oxygen sensor - slow response
4-4-2 air pump relay signal absent/faulty (on certain engines)
5-1-1 long term fuel mix too rich @ idle
5-1-2 short term fuel mix too rich @ idle
5-1-3 High temperature warning inside ECU
5-1-4 Engine cooling fan at low speed faulty
5-1-5 Engine cooling fan at high speed faulty
5-2-1 Oxygen sensor heating fault
5-2-3 signal to ECU module box cooling fan shorted to 12 volts
5-2-4 fault in transmission torque control signal
5-3-5 turbo regulator valve fault
5-4-1 EVAP valve signal fault (on certain engines)

[hellraiser]

Ah, I don't have one of those, I've got a 16 pin OBD II plug.

Thanks tho!

[Johnny5]

Oh! lol, Hope you get it sorted, do you know anyone with a OBD II Scan tool?

[hellraiser]

sadly no, just the snap-on scanner & bosch laptop. but like i said they will not connect for some reason.

[Johnny5]

Have a look at this site, they mention the same prob as youve got, summat to do with the "L" can line, and pin number 15!

https://www.scantool.net/forum/index.php?action=printpage;topic=280.0

[Tomcat]

You will encounter problems getting aftermarket scanners to work on the 850, it's not fully OBDII compliant so most of the aftermarket stuff won't work. If all else fails take it to a dealer, they'll check them for you....for a fee of course but it's better than nothing.

As for the fault.....check the usual like split vac pipes/intercooler hoses etc before spending any money. Mine split the hose that comes off the throttle body a while back, it went where the smaller hose is T'd off, must be worth a look.

[hellraiser]

You will encounter problems getting aftermarket scanners to work on the 850, it's not fully OBDII compliant so most of the aftermarket stuff won't work. If all else fails take it to a dealer, they'll check them for you....for a fee of course but it's better than nothing.

As for the fault.....check the usual like split vac pipes/intercooler hoses etc before spending any money. Mine split the hose that comes off the throttle body a while back, it went where the smaller hose is T'd off, must be worth a look.

Mornin!

Tomcat you were spot on, as soon as the sun came up I was out under the bonnet checking the pipes and as you said the hose that comes off the throttle body has a nice split in the crease were it T's off.
A big THANKS to you!

Now to order a set of samco hoses! lol