Question about 1991 Peugeot 405

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A key sign or K flashes on dashboard.

I recently bought a used peugeot 406 of 1998 model with automatic transmission and fuel injection and the problem i have is that a key like logo flashes on the dashbourd briefly and goes off and whenever this happens, the vehicle ceases fire briefly and picks up again. Many people i have contacted gives me different kinds of advice. What am i suppose to suspect or check?

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  • Peugeot Master
  • 21,937 Answers

Its an immobiliser fault ,dealer only so be prepared to lay the golden egg

Posted on Nov 20, 2008

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1 Answer

How do I change miles to km on Peugeot 407


Check with a Peugeot dealer, but I think, for sure, you will need a new speedometer head, ( the unit on the dashboard that you look at) and perhaps a new transmission sending unit, (that would be inside the transmission.)
(When I say new, I mean "new to the car", a pair of used pieces might work.)
If either you cannot find, or cannot afford the conversion, you might consider a "conversion chart" made on a piece of paper stuck on the dashboard, that you would likely memorize over a few months of time.
God bless your efforts.

Jun 03, 2016 | Peugeot Cars & Trucks

1 Answer

Have1987dodgeram 50 2.0 Ucan start and will run forever sitting still Take off and drive you might make 20 miles 45 miles1/4 of a mile and it will die starving for fuel? Has elec pump on inner fender


If it has fuel injection it could be throttle position sensor or other sensors that regulate fuel into the engine. Find a book, maybe buy a diagnostic plug-in device for that car and it might send a code to dashboard with flashing lights, that's the modern feature these days. If Dodge has that it could tell you what's wrong and better to try first than replacing expensive fuel pump or taking to mechanics. My 93 gmc has fuel injection and computer and recently it flashed a code 15, found codes on internet and it said problem was a coolant temperature sensor reading too high. It would start cold, but nearly would not start with engine warm. Replacing that solved it.

Apr 24, 2016 | Cars & Trucks

1 Answer

What generates fuel injection pulse on a 1994 geo metro base model? I have replaced alternator, TBI injector, and ECU. Checked relays, fuel pump and filter. Feed and return line are clear. On startup I get...


The PCM (ECU does that) its part of what is called EFI, electronic fuel injection, it's a computer, that gets inputs, and uses those inputs to injector perfectly at ALL times.
what engine? 3cy. or 4? is it TBI injected or MPI injected
1 injector or 4? we need to know that first.
does it run on test fuel for 3 seconds.
when was last time it run perfect, last week last year. what?
first off stop guessing, you can go broke that way.
want to diagnosis it? the steps are easy. if fuel is good..
  1. fuses good.?
  2. CEL lamp glow keyon, if not ECU is bad. or bulb , it must glow.
  3. compression over 150PSI on all cyl. (w.o.t = wide open throttle)
  4. do a 60k, mile tune up yet, filters, spark,. and cam timing belt.?
  5. if not, why wait?
  6. 6: is spark good tall cylinders not just 1? is the timing way off if yes, the cam belt did slip, do not fiddle tiiming, fix the belt. first.
  7. ok it now magically runs on test fuel for 3 seconds and sounds great. so we do fueling last.
  8. fuel pressure tests are next. takes $20 gauge got one?
  9. ill stop here, as fueling tests are long play.l..... ask. if you can get to step 9,

I think all 94 metors are TBI engines, one injector
up to 1997 inclusive.
then the 1998 offered 4cyl, MPI injected engine.


have you learned how to use flash codes (DTC) yet?
insert jumper , key on, see CEL lamp glow and flash 12s'
the crank for 5seconds, see if the flashes go to 41 or 42?
bingo if yes.
the TBI allows the mech to watch injection, at the TB.
with top hose off. you can watch it inject as person 2 cranks.
does it?
the ECU brain cuts fuel at the first sign of:
  1. lost spark (to stop fires)
  2. lost Cmp sensor, same .
  3. TPS ground wire busted and ecu things foot is W.O.T (super secret unflood mode) (or TPS cracked in half inside)
or total loss of fuel pressure.

Mar 27, 2015 | 1994 Geo Metro

1 Answer

How to unlock Peugeot immobilizer?


If you have any model of Citroen and Peugeot, and lost the immobilizer code, just turn to Peugeot Citroen KeyPad Immobilizer unlock tool, you can do as I do.

Sep 29, 2014 | Cars & Trucks

1 Answer

How to find codes for check engine light on


Check Engine Light Codes and Meanings
Long blinks Short blinks Problem
1 1 Camshaft position sensor
1 2 Mass air flow sensor
1 3 Engine coolant temperature sensor
1 4 Speed sensor
1 11 EVAP control system (flow)
1 14 Fuel injection system right bank (too rich)
1 15 Fuel injection system right bank (too lean)
2 1 Ignition circuit
2 3 Closed throttle position switch
2 5 Idle speed control
2 9 Fuel Injection system left bank (too rich)
2 10 Fuel Injection system left bank (too lean)
3 1 ECU
3 2 Exhaust gas recirculation system flow problem
3 3 Front left O2 sensor
3 4 Knock sensor
3 5 Exhaust gas recirculation temperature sensor
3 6 EGRC-BPT valve
3 7 Closed loop control
3 8 Closed loop control
4 1 Air intake temperature sensor
4 2 Fuel tank temperature sensor
4 3 Throttle position sensor
4 7 Crankshaft position sensor
5 3 Front right O2 sensor
5 4 Automatic transmission control unit
6 3 Cylinder #6 misfire
6 4 Cylinder #5 misfire
6 5 Cylinder #4 misfire
6 6 Cylinder #3 misfire
6 7 Cylinder #2 misfire
6 8 Cylinder #1 misfire
7 1 Multiple cylinder misfire
7 2 Three way catalytic converter (right side)
7 3 Three way catalytic converter (left side)
7 4 Evaporative emission control system pressure sensor
7 5 Evaporative emission control system
7 7 Rear O2 sensor
8 1 Vacuum cut valve bypass valve
8 2 Crank position sensor
8 3 Absolute pressure sensor
8 4 Automatic transmission control unit
8 6 Evaporative emission canister purge control solenoid valve
8 7 Evaporative emission Canister purge control solenoid valve circuit
9 1 Front Right O2 sensor
9 3 Evaporative emission Canister vent control valve
9 5 Crankshaft position sensor
9 8 Engine coolant temperature sensor
10 1 Front left O2 sensor
10 3 Park and Neutral position switch
10 5 EGRC solenoid valve
10 8 Evaporative emission canister purge volume control valve
11 1 Inhibitor switch
11 2 Revolution sensor
11 3 Improper shifting to first gear (Automatic transmission)
11 4 Improper shifting to second gear (Automatic transmission)
11 5 Improper shifting to third gear (Automatic transmission)
11 6 Improper shifting to fourth gear (Automatic transmission)
11 7 Solenoid valve lock up function
12 1 Shift solenoid B (Automatic transmission)
12 3 Overrun clutch solenoid valve (Automatic transmission)
12 4 Torque converter clutch solenoid valve (Automatic transmission)
12 5 Line pressure solenoid valve (Automatic transmission)
12 6 Throttle position sensor (Automatic transmission)
12 7 Engine speed signal
12 8 Fluid temperature sensor
13 2 MAP/BARO Switch Solenoid Valve
13 5 Fuel pump control module
13 8 Cooling fan

Dec 12, 2011 | 1995 Nissan Maxima

2 Answers

Hello,I just bought a 1987 Olds Toronado


is yours carb,if not 23- manifold air temperature (mat) sensor or circuit (1990 and earlier models) 23- intake air temperature (iat) sensor circuit (fuel-injected models) if its carb,,,,,23- mixture control (m/c) solenoid or circuit (carbureted models)

Nov 17, 2009 | 1987 Oldsmobile Toronado

1 Answer

505 wont start fuel not being injected


your injectors may need replacing

Jul 23, 2009 | 1987 Peugeot 505

1 Answer

Renault megance Dci doesn't start in the morning - injection prob


look in fuel filter you are looking for metal fillings. i suspect you have a broken high rail pressure pump. if all ok.
check the pump to see if bosch or siemens.
if bosch can you hear a wine noise for 3 seconds, this is a lift pump.
if ok i suspect a faulty injector, this stick open.
poss the fuel regulator.
crank shaft sensor.

May 27, 2009 | 2005 Renault 181

3 Answers

Car wont start on 206


you must fill the fuel filter housing with diesel to eliminate air pocket. if you don't have diesel, fill it with automatic transmission fluid. it will smoke for a few seconds, but it will run so fuel pump can catch up. don't touch throttle for a few seconds till you know that it is running on diesel and the tranny fluid is all used up.

May 24, 2009 | 1991 Peugeot 405

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