Question about Volvo 850

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How to fix volvo850 turbo in limp home mode

No spark engine crank. I change fuel relay coil etc

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  • Volvo Master
  • 14,585 Answers

You need to have the codes read for a good response. But you have a couple problems going on. No spark could be a fuse, crank sensor, wiring , or the computer. Limp mode is another problem. It could be a engine or transmission problem. Limp mode doesn't kill the engine, it puts the transmission in a certain gear so you won't be able to cause more damage.

Posted on Nov 16, 2014

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Posted on Jan 02, 2017

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SOURCE: no spark at coil

check ignition pick-up coil and ignition module

Posted on Mar 31, 2009

roniecon
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SOURCE: 94 concorde

change crank sensor? if so replace control module (ignition module)

Posted on Jul 04, 2009

  • 1 Answer

SOURCE: My Audi A3 2.0 tdi limp mode/turbo overboost

i also have done a diagnostic test and it states a turbo overboost condition and it drives fine locally but loses power on the motorway and struggles to reach 80mph? any suggestions please email me at shiz86@hotmail.co.uk

Posted on Sep 14, 2009

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SOURCE: my 2001 honda civic will turn over but not start

most common problem with these civics are the rotor and ignitor. i would reccommend starting with a new dist cap, rotor, and ignitor.

Posted on Oct 26, 2009

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SOURCE: 89 ford probe, 2.2 turbo, no spark.

Check out your "fuel cut-off switch" located by the windshield washer tank behind the driver's side wheel-well panel in the trunk. It's a small box with a push-button at the top. If the button is "soft" when you push it, that's probably your problem. Replace the unit by removing the washer fluid tank first. The box simply plugs in. Probably about $ 100. I replaced three in my Probe. They rot out, and the car simple dies.

Posted on Nov 11, 2009

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EF ford on gas cranks but will not fire have changed coil pack and have power to the main loom (plug) to coil pack


Check crank position sensor or cam position sensor if applicable. Is it actually sparking? If so either its not being told when to fire or there is something else telling it there's no fuel etc. Check the relay box for fuel relay etc.

Mar 30, 2015 | Ford Cars & Trucks

2 Answers

I have a 2003 Saab 9-3 Turbo convertible, I have replaced the coil pack, the battery, starter, fuel pump, crankshaft position sensor, spark plugs & more, the engine cranks like nobodys busines


did you check for voltage at the coil pack low tension input
this comes from the electronic ignition and the distributer dc setting on a multimeter

check inside the distributer that the little magnet is still in place on the rotor and that the sensor is outputing pulses as it turns over
{you can use a meter set to AC range for this ...}
pull a plug out and place its metal to ground check for actual sparks
if this is there then its fuel ...

Dec 05, 2014 | 2003 Saab 9-3

2 Answers

2004 dodge dakota in limp mode wont go past 2000 rpm P2305 code comes on check engine light comes on can reset code but light stays on and wont go past 2000 rpm


Since you didn't say what engine you have, I am assuming it to be a 3.7 L. Code P2305 is set for insufficient ionization of the #2 coil. 1. Inspect the spark plugs for correct application, these should have NGK platinum spark plugs installed. Inspect the plugs for any signs of misfiring, such as carbon tracking on the spark plug insulator or the coil boot. Inspect for cracked spark plugs or incorrect gap. Inspect for any kind of fouling on the spark plugs. Replace the spark plugs or the coils as needed.

2. Verify the wiring is not shorted to ground from the coils to the Powertrain Control Module (PCM).

3. Keep in mind that anything that can affect the air fuel mixture can cause this code to set. Be SURE that there are NO vacuum leaks, the injector is not at fault, etc. Moving parts one at a time (spark plug; coil; injector) to "known good" cylinders is the best way to diagnose this trouble code.

Sep 20, 2014 | 2004 Dodge Dakota

1 Answer

Turns over but no start


WHAT ENGINE ?????? 4, 5.2 or 5.9 Liters?
Fuses are First, always for ever. on electrics or EFI.
dry rail cranking ! you must crank it.
(if you have liking injector or leaking regulator it can drop fast ,so crank on) yes, 2 men or 1 and small boy, LOL
so check voltage at the pump cranking. please stop guessing.!

the ECU commands up the PUMP , cranking or running
so crank and read voltages at pump or at FP relay.

pump activating, is by premissives. not just a key on event
due to crash and burn rules. (unlike on TV)
same with injection. (spark must be good)
first , buy your self a voltmeter (DMM/DVM) its a very easy tool to use
and on volts, mode, totally harmless to you or car. !!!

be aware, that on some cars
if there is no spark, there is no fuel pumping
or it might take a second to detect no spark and the pump is cut
or on one of my cars the pump works the engine starts for 1second
and the ECU sees no spark (dead tachometer ) even though spark is
good the ECU sees no spark and ALL fuel is cut, injectors and fuel pump relay ( you never monitored the action of the relay?. and its dead.? i bet?) spark monitoring can fail with good spark, !!!
the path, on all cars.............. pins and colors change to confuse...
-------------------------------------------------------------------------
the FUEL pump relay is in the PDC
it has 4 pins, its just a 4 pin std, relay.
a coil and a contactor
if the coil is not HOT (12v across the coil) cranking
there will never ever be pump action.
so the first test is to check the PUMP relay coil wires.
the coil hot side is 12vdc key on
the other wire, marked. C20 DB (dark blue?)
it is 12v keyon
and when you crank the PCM grounds this wire and it must go
to 0v, (0.5v max) if not the PCM is in CUT FUEL MODE.
99.999999% sure, its not a bad PCM. see?
if this line dont go low you must find out why the PCM is in cut fuel.
this is pretty easy,its called a scan tool. got one
they only cost $9 (ask)
if the coil is hot at C18 relay pin and 0v at C20
this state the Relay is energized.
so we check pins C16 and 17,of said relay
we check C16 first. its 12v even key off, hot at all times if not, the fuse is blown. (or battery totally dead)
then crank and pin C17 goes hot(note my order of testing, its not random) C17 dead, is bad relay, C17 12v, cranking is dead pump.

C17 is DG/wht wire, (darkgreen.with white stripe?)
if this wire is cut the pump is dead
so is the pump dead, if hot this wire is, and the pump ground wire is cut.
when i say cut that means cut or corrosion,etc.
eg; gross resistance in the path.

takes 4min to show, and longer to type this...
the G305 pump ground black must not be bad. (12v on black wire is just that while cranking)

i will not fully cover PCM permissive on the pump.
but will do so in short.
1: ECU sees spark loss, for any reason.. even when good real.
All ECu do this differently. many read the spark coil primary
wires of inductive (EMF) kickback , on one or all coils.
other cars its just the tachometer signal dead.
2: CMP errors (cam sensor)
3: CKP errors. (crank sensor)
4: TPS stuck at WOT , usually only cuts injectors.. (unflood mode)


ive built and programmed PCMs from scratch and am aware of all pitfalls here. am.
if have the drawings, ask.
or log in to Alldata.com

again, connect the $9 scan tool
keyon
crank for 5 seconds. (min) max 15)
does RPM roll from 0 to near 300? no? bingo.
does DTC 340 or 350 store as you crank or release key
and do not turn off key, wait 1 second, see if DTCs are stored
in the PCM looking with any scan tool made..
if yes, BINGO !!!!

Nov 30, 2013 | 1998 Jeep Grand Cherokee

2 Answers

Why is my 2.0 tdi-140 bhp cuts the power out when i push the trotle more then 2800 revs


cam/crank and knock sensors can put the engine in limp mode. knock sensors are more prone to go on a diesel engine... you really need to have the codes read instead of changing parts. some times a faulty cam/crank sensor will not come up as it will only have the fault at certain speeds.

Oct 05, 2013 | Cars & Trucks

2 Answers

When I accelerate hard to pass my check engine light comes on and the vehicle goes into limp home mode.


Get the vehicle looked at by a garage. The reason it goes into limp home mode is to protect the engine from further damage. The reason the check engine light comes on is because the engine needs checking with some urgency.

Nov 18, 2012 | 2007 SsangYong Actyon 4x4

2 Answers

We have a Subaru Legacy GT, Twin Turbo 93, the car cut out and will not start, no fault codes, replaced spark plugs, fuel filter, checked the fuel pump, replaced air flow meter, engine temperature sensor,...


sounds like your timing may be off, or have a crank shaft postion sensor failing, when it cuts are you losing spark completely? do you have a fuel pressue gauge? whats the pressure? also you could try running it with the map sensor unplugged and see if the condition improves

Jul 31, 2011 | 1993 Subaru Legacy

1 Answer

My 2005 Dodge stratus will not crank. It was sputtering this morning when cranked, and the engine liht was on. I took to advance auto to put on tester. They told me the heating coil or the plugs. I buy...


Well, let see, see if you hear fuel pump hissing or a click once you turn your key to the "on" postion. If so, then fuel pump is building pressure and is working, if not then fuel pump is the promblem and please check your fuel pump relay before actually considering fuel pump failure, secondly could be your ignition coil that's gone bad, I don't really know how to test this, but heard you can pull the spark plug out while still instact with the spark plug wire, position it about 1" away from a ground unit, such as your engine valve cover which is the metal part, or ground to see if there is a spark.... this is only on older model when the ignition coil is relayed within the distruburator. However seems by what advance auto diagnostic, seems like it the ignition coil that gone bad and needs to be replaces.

Jan 22, 2011 | 2005 Dodge Stratus

1 Answer

1999 Dodge Ram 1500 cargo van will not start


If it cranks good but won't start, have a helper crank it while visually check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure. Also, check fuel injector pulse.
If your missing several system, an example, at the ignition coil and fuel injectors, engine cranking, check the dark green wire with orange tracer for voltage? If no voltage that leads back to asd relay. I'm not saying the relay is faulty. Your computer has to see both the cam and crank sensor signals or it may not ground the asd relay. The asd relay supplies voltage to several systems.

Mar 12, 2017 | 1999 Dodge Ram

1 Answer

I have 8000 miles on my Tucson check engine light came on at start up this morning...gas cap is tight...no problems?????


there are over 200 reasons for the check engine light to come on, the gas tank cap is just one of them, this light and the problem that turned it on are most likely covered under the federal emission warranty, contact the dealer. see trouble code list below for some of the probelems that cause a check enghine light.
P1100 Map Sensor - Malfunction
P1101 Map Sensor - Abnormal
P1102 Map Sensor - Low Input
P1103 Map Sensor - High Input
P1104 Air Flow
P1105 Air Flow - Abnormal
P1106 Air Flow - Low Input
P1107 Air Flow - High Input
P1108 Fuel Pump
P1109 Fuel Pump - Abnormal
P1110 Fuel Pump - Stuck On
P1110 ETS System - Malfunction
P1111 Fuel Pump - Electrical
P1112 Manifold Differential Pressure Sensor
P1112 VGT Actuator - Malfunction
P1113 Manifold Differential Pressure Sensor - Abnormal
P1114 Manifold Differential Pressure Sensor - Low
P1115 Coolant Temperature Input - Abnormal
P1116 Boost Pressure Sensor - Malfunction
P1118 ETS Motor - Malfunction
P1119 Inlet Metering Valve Control
P1120 Electric Governor - Malfunction
P1120 Inlet Metering Valve Malfunction
P1121 APS PWM Output Circuit Malfunction
P1121 Throttle Position Input - Abnormal
P1122 Boost Pressure Control Valve
P1123 Fuel System Rich - Idle
P1123 Timer Position Sensor - Malfunction
P1124 Fuel System Lean - Idle
P1125 Fuel Press Sensor1
P1126 Fuel Press Sensor2
P1127 Fuel System Rich - Part Load
P1127 Control Sleeve Position Sensor
P1128 Fuel System Lean - Part Load
P1130 Start Solenoid- Malfunction
P1131 Injection Quantity Adjust
P1134 O2s Transition Time(B1/S1)
P1135 Injection Timing Servo
P1140 Inlet Air Temperature Sensor Malfunction
P1141 Slow Duty Solenoid- Malfunction
P1145 Main Duty Solenoid- Malfunction
P1146 Idle Co Potentiometer
P1147 Accelerator Position Sensor (ETS) Circuit
P1150 Barometric Pressure Sensor Malfunction
P1151 Accelerator Position Sensor (EMS) Circuit
P1152 Accelerator Position Circuit-Low Input
P1153 Accelerator Position Circuit-High Input
P1154 O2s Transition Time(B2/S1)
P1155 Limp Home Valve- Malfunction
P1159 Variable Induction System
P1162 High Pressure Pump & Fuel Line
P1166 O2s (B1) Control Adaptation
P1166 Limit O2s Lambda Control (B1)
P1167 O2s (B2) Control Adaptation
P1167 Limit O2s Lambda Control (B2)
P1168 O2s (B1/S2) Heater Power
P1169 O2s (B2/S2) Heater Power
P1170 ECM (Barometric Pressure Sensor)
P1171 ETS Valve Stuck - Open
P1172 ETS Improper Motor Current
P1173 ETS Target Following Malfunction
P1174 ETS Valve Stuck - Close #1
P1175 ETS Valve Stuck - Close #2
P1176 ETS Motor Open/Short #1
P1177 ETS Motor Open/Short #2
P1178 ETS Motor Power - Open
P1179 ETS Position F/B-Mismatch
P1180 O2 S1 Heater Circuit- Malfunction
P1180 Fuel Pressure Regulator - Malfunction
P1181 Fuel Pressure Monitoring
P1182 O2 S2 Heater Circuit - Malfunction
P1182 Fuel Pressure Regulator - Short
P1183 Fuel Pressure Regulator - Open
P1184 O2s No Activity (B1/S2)
P1184 Fuel Pressure Regulator - Power
P1185 Fuel Position - Excessive
P1186 Fuel Pressure - Too Low
P1187 Regulator Valve - Stuck
P1188 Fuel Pressure - Leakage
P1189 Governor Deviation
P1190 Intake Throttle Actuator
P1191 ETS Limp Home Valve On
P1192 Limp home - Target Follow Malfunction
P1193 ETS Limp Home - Low Rpm
P1194 Limp Home - TPS2 Position Malfunction
P1195 Limp Home - Target Follow Delay
P1196 ETS Limp Home - Close Stuck
P1300 Spark Timing Adjust Signal
P1300 Injector Specific Data Fault
P1300 Synchronization Error-CKP/CMP
P1301 TDC Sensor - Abnormal
P1302 TDC Sensor - Low Input
P1303 TDC Sensor - High Input
P1304 Phase Sensor
P1305 Phase Sensor - Abnormal
P1306 Phase Sensor - Low Input
P1307 Phase Sensor - High Input
P1307 Accelerator Sensor - Range/Performance
P1308 Ignition Coil.1
P1308 Accelerator Sensor - Low
P1308 Accelerator Sensor Circuit - Low
P1309 Ignition Coil.1 - Abnormal
P1309 Accelerator Sensor - High
P1309 Accelerator Sensor Circuit - High
P1310 Ignition Coil.1 - Low Output
P1310 Injection Control Circuit Fault
P1311 Ignition Coil.1 - High Output
P1312 Ignition Coil.2
P1313 Ignition Coil.2 - Abnormal
P1314 Ignition Coil.2 - Low Output
P1315 Ignition Coil.2 - High Output
P1316 Ignition Coil.3
P1317 Ignition Coil.3 - Abnormal
P1318 Ignition Coil.3 - Low Output
P1319 Ignition Coil.3 - High Output
P1320 Ignition Coil.4
P1321 Ignition Coil.4 - Abnormal
P1321 Glow Indicator Lamp - Short
P1322 Ignition Coil.4 - Low Output
P1322 Glow Indicator Lamp - Open
P1323 Ignition Coil.4 - High Output
P1324 Glow Relay - Malfunction
P1325 Glow Relay - Abnormal
P1325 Glow Relay
P1326 Glow Relay - Stuck On
P1326 Glow Relay - Short
P1327 Glow Relay - Electrical
P1327 Glow Relay - Open
P1330 Spark Timing Adjust Signal
P1331 #1 MF Signal Line Short
P1332 #2 MF Signal Line Short
P1333 #3 MF Signal Line Short
P1334 #4 MF Signal Line Short
P1335 #5 MF Signal Line Short
P1336 #6 MF Signal Line Short
P1337 #7 MF Signal Line Short
P1338 #8 MF Signal Line Short
P1340 IFS 2 Open

Jun 16, 2009 | 2006 Hyundai Tucson

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