Questions tagged [ignition]

For questions related to the process and components that generate the spark that ignites the fuel-air mixture in gasoline engines.

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1answer
755 views

What would cause repeated failure of ignition coils?

I have a Nissan 2008 Rogue, which is fired by ignition coil. I've been experiencing repeated singular ignition coil failures every 1-2 months now for the past 6 months. I'm on my 6th failure, never ...
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0answers
362 views

Kia Cerato 2009 won’t start - dash lights won’t work

Yesterday I disconnected the battery and reconnected it again (correctly) so I could change a head light as it was very hard to reach. Once the battery was reconnected my car wouldn’t start and my ...
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1answer
100 views

1999 Accord Cranks but won't start after replacing ignition switch

I have a 1999 Accord and the ignition switch recently stopped being able to be turned. It had been acting up and sometimes would turn and sometimes wouldn't, but whenever it turned, it started with no ...
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1answer
37 views

Starting the car

I just bought a new Honda Civic 2018 LX, and I was wondering: When inserting the key into the ignition, should I wait on the ON position until the lights settle before starting the engine?
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22 views

My Mutsibish Pajero, Model 1995 has become hard to start in cold weather to start immediately

My Mutsibish Pajero, Model 1995 has become hard to start in cold weather to start immediately. I have to try like 2-3 times yet I do the pre-heating as required.
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0answers
139 views

Switched fuse always on

Wondering if someone can help. I am putting in a GPS unit in my friends truck. Not the first time I've done this in his truck. Last time we ran the red ignition wire to his fuse box using the supplied ...
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1answer
393 views

98 Mazda 626 GF 2L ATX zero ignition timing at idle?

My 1998 Mazda 626 GF 2L ATX has zero ignition timing at idle when fully warmed up causing a rough idle condition. I've replaced the faulty O2 sensor with no effect on the retarded timing and replaced ...
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0answers
581 views

85 Suzuki Samurai - Engine sometimes stalls, and hard to start when warm. Probably electrical problem

I'm having a problem with my car. Sometimes when engine is warm, it will strugle to start (starter runs fine, but no ignition). It also happens (rarely) that the engine just dies while driving. It ...
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0answers
2k views

Why does my 2015 Ford Fusion not want to start after putting gas

The last couple of months my car has a hard time starting when I put gas in it. It doesn’t matter if it’s half tank or almost empty. It started with sputtering and hesitation and now it just tried to ...
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1answer
679 views

New battery, but car won't start and odometer blinking rapidly

The battery warning light on my 2000 Mazda Protege kept coming on after 35 miles per hour, so I took it to AutoZone to get it checked. The battery was bad (it did need a jumpstart in January) but the ...
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1answer
1k views

1995 Ford F150 5.8L (351W) pings under acceleration/load

I have a 1995 Ford F150 pickup with a 5.8L (351 Windsor) motor that had a bad pinging noise and loss of power when either accelerating or when it was under load (and especially so when accelerating ...
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1answer
631 views

Engine and ABS warning signs because of low battery?

Two days ago, the "Engine warning sensors" and "ABS sensors" started blinking in my SUV, and the car was not starting (no ignition). But the headlight, and AC was working fine. After multiple trials,...
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1answer
523 views

VW Fox ignition system problems

Recently I have noticed some strange things happen with my 2005 Volkswagen Fox 1.4 petrol engine. On rainy days the engine always stalls when I stop, sometimes check engine light starts to blink, ...
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5answers
1k views

Simplest installation of car-powered car-pc

Am posting here as this question seems to be considered off-topic on both the electronics and the Raspberry sister sites. Would like to install a carputer (Raspberry Pi), and am wondering about the ...
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2answers
608 views

Motorcycle: fuel and spark but no ignition?

I inherited a '79 Yamaha XS400 (2 cylinder, 4 stroke, air cooled, SOHC, duel carburetors). The timing chain had broken so I replaced it, setting the timing at the same time. I cannot start it. The ...
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1answer
233 views

Ignition lead plug end has white residue on one lead, what could be the cause?

I have a 1997 Hyundai Lantra 1.8l While I was replacing the spark plugs a discolored lead was discovered. The 4 plugs were all the same age and appearance. What could cause this
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0answers
892 views

Spark coming from distributor cap pin

recently I have noticed some random engine misfires. I've checked my spark plugs and wires and haven't noticed anything unusual. I have checked for sparks at night and there were no sparks coming from ...
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1answer
934 views

Car is intermittently completely dead then is fine after a little while

I have a 2008 Pontiac G5. The battery is about 7 months old and I had it tested and it is perfectly fine. Connections to the battery seem solid and clean. However, intermittently when I try to ...
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1answer
90 views

Why do some applications show ignition signal in the O2 signal?

I had read somewhere that some cars show the ignition signal as interference in the oxygen sensor signal when viewed on a scope. It turns out my 98 Mazda 626 is one of those applications: The full ...
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0answers
104 views

2010 ford escape XLT ignition issues

I use to have to push my key in really hard to get it to start. now it wont start with the key at all. but if i use my remote starter to start my car then put my key in it works. what could this be ...
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1answer
91 views

Toyota Taco 06 2.7l 4c, Why are we having Ignition and idle problems after a head gasket repair?

We just replaced the head gasket and sealed with silicone and new gaskets. After our process was complete we discovered the engine idle would go from 1,000 rpms for 8 sec to 500 rpms 8 seconds ...
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2answers
52 views

looking to buy a 2000 ford expedition with broken ignition. it doesn"t run but running prior. how do i repair it

Thinking of buying at 2000 ford expedition. The keys where lost to this vehicle. they tried to hammer out ignition causing anti theft light to come on. The vehicle does not run. Before this the ...
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1answer
57 views

2004 CRV Start issue

Basically each time I turn the ignition, one of three things happens: Car starts with no issues Starter cranks but engine doesn't start Starter doesn't crank at all (but e.g. dash lights will go dim, ...
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1answer
47 views

Motorcycle won't start or attempt to swing, and the headlights don't come on, but the hooter sounds healthy

My motorcycle (Kawasaki Ninja 300) does the normal dashboard light-up sequence when I turn the key, but the normal electrical whine that happens simultaneously stops earlier than usual. The headlights ...
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0answers
80 views

Need help, my only way of getting to school and work tomorrow!

I've got a 1999 Honda Shadow 600, its been doing good recently and over the summer I put a good amount of work in it to keep it going. I went to turn it on an it would sound like it would turn over ...
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10answers
12k views

How can I disable my 2002 Ford Explorer so someone with a key can't start it? [closed]

A person at my house continually moves my 2002 Ford Explorer from the driveway to the street without permission. The key is shared and must remain easily accessible. Personal issues aside, is there a ...
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0answers
548 views

Fiat uno fire 1100

I'm having trouble with my car not starting. I bought a new coil and a new module, and cleaned the distributor, but I'm still without luck. What else can it be? And then I want to know on your coil ...
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0answers
65 views

Pencil Coil Operation

Pencil coils are very small. Do they operate on the CDI Principle? I thought that CDI was not good on lean mixtures which are good for fuel economy? Do they operate on the accepted Inductive Discharge ...
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2answers
2k views

What fuel type is more explosive?

I think it's one of the most popular things in action films: Cars exploding. In reality, a car explodes very rarely, even when it gets shot. However, what fuel type tends to explode more? Diesel ...
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1answer
151 views

Car will not start after short sitting period

Full disclosure: I am no mechanic but kinda know my way around a car. So I have a Subaru Impreza ('95 automatic) and a weird problem. When I let the car sit for two or three days it does not want to ...
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1answer
148 views

Ignition turning engine over when key is off

1996 Ford F250, 7.3 diesel. Steering column has been loose for a bit, which makes me suspect the switch.....Started truck fine to come home from work. Pulled into driveway and as soon as I turned the ...
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2answers
314 views

Is there a risk of igniting the incoming charge with wasted spark systems?

I came across a question about wasted spark systems, and I was wondering whether there is a risk of prematurely igniting the incoming fresh mixture charge with that wasted spark. At the top of the ...
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1answer
2k views

Lexus won't start

2005 Lexus LS430 will not turn over. There is no clicking sound, which I think is the starter. All lights work; dash and headlights. When I Turn the key to the on position there is nothing.
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1answer
51 views

Troubleshooting: Startup/Ignition

What factors influence ignition, during startup? Relatively modern vehicle; little over 10 years old. Owned since new. No history of related problems. Recently began to display intermittent failure ...
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1answer
2k views

How safe is it to advance spark timing?

A popular "mod" to the Miatas engine is to advance the spark engine from the factory 10 BTDC to 14 BTDC, this moves the peak torque earlier in the rpm range and is claimed to also increase horse power....
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2answers
787 views

car engine wont start and randomly turns off while driving

so i drive a ford focus lx 2000 (i dont know anything about cars) and sometimes it wont start. like when i turn the key, the lights, ac and radio turn on but the engine doesnt even click or make ...
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1answer
1k views

Electrical problem with my 125cc. motorcycle

Yesterday I was waiting for my wife to get out of her work and when I tried to start my bike, at the very moment I pressed the start button, it all went off. All the lights, the cockpit just went off. ...
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2answers
14k views

Is it normal that a cold engine takes longer to start?

I have a 2014 Passat and recently my battery drained just enough to not start the car. I suspected that it was a combination of short trips + that feature that leaves the lights on when locking the ...
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2answers
258 views

Engine missfires when idling, but only when hot

I have a 1988 Toyota Corolla EE80 that I bought recently, 1.3L carburetor engine with distributor ignition. The engine idles normally at around 1500rpm idle when it's cold. But the moment the coolant ...
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1answer
22k views

What are the benefits of direct ignition (coil on plug) system?

Most recent gasoline cars have a direct ignition, also called coil on plug, system where each spark plug has its own ignition coil. Before that, cars used a common ignition coil for all cylinders. ...
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2answers
67 views

2005 Kia Sedona sensor question

This might be a silly question but do I need dielectric grease to install an ignition failure sensor where it mounts on to the thermostat housing assembly?
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2answers
1k views

Car electric issue due to cold weather

I live in the UK and lately is being quite cold. I've seen this question to see common problems related to a cold weather. This morning however something weird happened. I own a peugeot 206, and it ...
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0answers
5k views

Bypassing the Neutral Safety Switch? No start no crank issue!

I have a 2000 Acura TL, and it had been having some no-start no-crank issues, usually, I would turn the key and nothing would happen (just one click), it might take a few tries but eventually it would ...
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1answer
620 views

How does the Prius (2011) re-ignite the gas engine without causing too much wear on the ignition? [duplicate]

How does the Prius (2011 model if it matters) re-ignite the gas motor when it needs to be used without wearing down the ignition system too much? Since the Prius is a Hybrid the gas engine is not ...
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2answers
10k views

Weak spark on one cylinder

In the sequence of my previous question about the engine vibration (Engine is vibrating when idle and seems like missfiring), I have been trying to diagnose the problem on my own. What I have found ...
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3answers
3k views

How does a timing light detect the electricity in the plug wire?

I assume that a timing light functions by some kind of inductive pickup and the signal is amplified by power from the battery and turned into a flash at the bulb. But I was wondering, is it picking ...
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1answer
2k views

Converting Motorcycle From Traditional Distributor to CDI Ignition System

I have a 1985 Honda CG125. The ignition uses contact points, I plan to convert it to CDI. Nowadays, it is difficult to buy contact points and is troublesome to maintain them. What will I need to ...
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0answers
171 views

2008 Ford Escape Hybrid - Ignition, electrical issue

Sometimes when I try to start my 2008 ford escape hybrid rather than starting the electrical system freaks out. Lights flicker, fans stop, doors lock, there is clicking from the steering column and ...
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1answer
11k views

What is an igniter?

In researching this question about the behavior of the tach on a Mazda Miata I came across references to a part called the "igniter" that apparently has a role in generating the signal that drives the ...
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1answer
406 views

Bike wont power up

I have a 2001 bandit 600, it ran fine till one day it died mid trip, started again but soon turned off again. Got it home jumped it ran for a few moments then died. The battery is new, and it cranked ...

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