need help asap

[aoktech]

ok I'm new to this site but i'm had my 1990 Q45 for about 5 years so i'm familiar with fixing it, but on tuesday morning started the car with no problem didn't drive it. at around 2 in the afternoon i went to leave and to my surprise no start which has never happened before i'm getting gas i'm getting spark battery is new brought in feb first it was cranking slow i connected jumper cables tried again. flooded the engine changed sparkplug still no start please help i'm lost ........

[Q-ZILLA]

Your going to need to elaborate more on the issue... How do you know your getting fuel and spark? Is the starter turning over? What, if anything does the dash say? Have you cleaned up your battery cables and ground contacts? How about charging the battery? etc.

[Q451990]

to NICO!

If I'm understanding you correctly, you started the car in the morning, but didn't leave it on long - maybe you were shuffling cars around in the driveway.

If that's the case, it's likely you flooded it. Here's why... Nissan uses a particularly heavy hit of fuel during a cold start. Prior to cranking when the car is cold - the ECU shoots a heavy squirt of fuel out of all eight injectors to enrich the fuel mixture and help keep the engine running. It's a backwards way of the old school choke to change the fuel ratio. Instead of cutting air, they increase fuel. If you turn the car off before it burns off all of the extra fuel, it washes the oil film off of the piston rings and you don't have compression.

In this situation, you should hold the gas pedal to the floor before turning the key. Keep it there and don't let off of the starter until it the engine is running, or the battery dies. Flooring the gas pedal tells the ECU "don't hit it with fuel, the driver thinks it's flooded"

Good luck!

Heath

[aoktech]

Your going to need to elaborate more on the issue... How do you know your getting fuel and spark? Is the starter turning over? What, if anything does the dash say? Have you cleaned up your battery cables and ground contacts? How about charging the battery? etc.

Im sorry new to forum stuff. I know Its getting fuel cause i pulled the plugs And they Were Were with gas And i could smell it, battery is véanse new diehard gold cables are clean And car Just cranks

[aoktech]

to NICO!

If I'm understanding you correctly, you started the car in the morning, but didn't leave it on long - maybe you were shuffling cars around in the driveway.

If that's the case, it's likely you flooded it. Here's why... Nissan uses a particularly heavy hit of fuel during a cold start. Prior to cranking when the car is cold - the ECU shoots a heavy squirt of fuel out of all eight injectors to enrich the fuel mixture and help keep the engine running. It's a backwards way of the old school choke to change the fuel ratio. Instead of cutting air, they increase fuel. If you turn the car off before it burns off all of the extra fuel, it washes the oil film off of the piston rings and you don't have compression.

In this situation, you should hold the gas pedal to the floor before turning the key. Keep it there and don't let off of the starter until it the engine is running, or the battery dies. Flooring the gas pedal tells the ECU "don't hit it with fuel, the driver thinks it's flooded"

Good luck!

Heath

Thank You i will Try this when i get home But could it be Any other thing while Im Out there in the cold

[aoktech]

thank you very much it started right up so happy to have her running again

[Q451990]

Glad it worked!

Now is a good time to change the oil... the flooding diluted it to some extent...

Heath