Jump to content
SAU Community

Recommended Posts

Ok, to cut a long story short, i'm normally very careful. But for some reason, tonight, I wasn't thinking straight.

I did an oil change, and I forgot to put the oil cap back on. I went for a drive, and the care kept almost stalling on idle. I drove about 10 minutes, then pulled over. realised the cap wasn't on, put it on, then drove home.

I didn't drive hard. never over 3k rpm. Not much boost, maybe 2 psi or something. The whole time, the oil pressure guage was still between 2-4.

Now, I lost maybe about 300ml of oil or so, but that's not my main concern. Basically, it was still above the low on the dipstick.

What I am concerned about, is whether having the cap open meant that there was no oil pressure and that I might have kileld the engine. Is it likely to be ok?

Also, why does it want to stall if the cap is open?

cheers guys.... hope the news is good.

No problem, oil pressure is made by oil pump. Just a bit of mess from a little oil.

It stalls due to the way the crank case ventilation works with the intake, vacuum system, so more air getting into vacuum system (eg oil cap off) without fuel to compensate will cause engine to stall?, as well as idle control going WTF is all this extra air after throttle body.

Yeah it should be fine just put some more oil in her and give the engine a degrease to get rid of all that oil, done this once before in my old S13 all it did was make a real bad mess, put more oil in put the cap back on went down to the carwash and hosed all the oil off and all was fine :whistling:

Was in a rush.. asked for a top right positive battery.

Got home, threw it in the car, threw on the positive, as the negative clamp touched the terminal it sparked and instantly popped the 75amp main fuse ($33 suckers), 10amp incar fuse and chances are my powerfc as now there's no relay click and no display on the pfc h/c

The bastard is it was a cheap battery to get me by while I send the old battery off for warranty, the cheap battery has very difficult to see + and - signs, unlike the old battery that has a clear RED marking under the positive side.

Well enough excuses I 100% completely stuffed up badly and should have checked.

The PFC appears to look and smell fine inside but pin 57 does appear to have a cut in a trace that runs from it, IF this done by AP Engineering or not I don't know, by eye it looks like a precision cut, by camera in macro mode I think it looks like its blown but not burnt, if thats possible.

Hows that for a I'M A TOTAL IDIOT story. :whistling:

As a result I'm now researching in to this.....

post-382-1151758892.gif

An RB25 PFC will be going in if this R32 item is buggered.

  • 3 weeks later...

I don't understand what you did wrong cubes?

Was it just that sparking when you connected the negative terminal onto the negative?

whenever I disconnect the battery and reconnect it on any car it always seems to spark.

Or am I missing something and did you actually connect it the wrong way?

Is there anyway to avoid the sparking?

In short.

New battery, asked for top right positive, didn't double check, was in a rush, connected negative lead to positive, grabbed positive lead went to connect to negative battery, it touched sparked, 75amp fuse made a loud pop, 10amp fuse under dash popped multiple resistors and a couple of capacitors crapped them selves within the ecu.

It was a cheap battery (mines in for warranty) so there were no colour markings and the slight + - markings are so damn hard to see its not funny, especially at dusk which is when I dropped the battery in.

So yes something so simple yet so so stupid. lmao.. I was lucky. :banana:

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Could be. Could also be that they sit around broken more. To be fair, you almost never see one driving around. I see more R chassis GTRs than the Renault ones.
    • Yeah. Nah. This is why I said My bold for my double emphasis. We're not talking about cars tuned to the edge of det here. We're talking about normal cars. Flame propagation speed and the amount of energy required to ignite the fuel are not significant factors when running at 1500-4000 rpm, and medium to light loads, like nearly every car on the road (except twin cab utes which are driven at 6k and 100% load all the time). There is no shortage of ignition energy available in any petrol engine. If there was, we'd all be in deep shit. The calorific value, on a volume basis, is significantly different, between 98 and 91, and that turns up immediately in consumption numbers. You can see the signal easily if you control for the other variables well enough, and/or collect enough stats. As to not seeing any benefit - we had a couple of EF and EL Falcons in the company fleet back in the late 90s and early 2000s. The EEC IV ECU in those things was particularly good at adding in timing as soon as knock headroom improved, which typically came from putting in some 95 or 98. The responsiveness and power improved noticeably, and the fuel consumption dropped considerably, just from going to 95. Less delta from there to 98 - almost not noticeable, compared to the big differences seen between 91 and 95. Way back in the day, when supermarkets first started selling fuel from their own stations, I did thousands of km in FNQ in a small Toyota. I can't remember if it was a Starlet or an early Yaris. Anyway - the supermarket servos were bringing in cheap fuel from Indonesia, and the other servos were still using locally refined gear. The fuel consumption was typically at least 5%, often as much as 8% worse on the Indo shit, presumably because they had a lot more oxygenated component in the brew, and were probably barely meeting the octane spec. Around the same time or maybe a bit later (like 25 years ago), I could tell the difference between Shell 98 and BP 98, and typically preferred to only use Shell then because the Skyline ran so much better on it. Years later I found the realtionship between them had swapped, as a consequence of yet more refinery closures. So I've only used BP 98 since. Although, I must say that I could not fault the odd tank of United 98 that I've run. It's probably the same stuff. It is also very important to remember that these findings are often dependent on region. With most of the refineries in Oz now dead, there's less variability in local stuff, and he majority of our fuels are not even refined here any more anyway. It probably depends more on which SE Asian refinery is currently cheapest to operate.
    • You don't have an R34 service manual for the body do you? Have found plenty for the engine and drivetrain but nothing else
    • If they can dyno them, get them dyno'd, make sure they're not leaking, and if they look okay on the dyno and are performing relatively well, put them in the car.   If they're leaking oil etc, and you feel so inclined, open them up yourself and see what you can do to fix it. The main thing you're trying to do is replace the parts that perish, like seals. You're not attempting to change the valving. You might even be able to find somewhere that has the Tein parts/rebuild kit if you dig hard.
    • Can you also make sure the invoices on the box (And none exist in the boxes) are below our import duty limits... I jest, there's nothing I need to actually purchase and order in. (Unless you can find me a rear diff carrier, brand new, for stupidly cheap, that is for a Toyota Landcruiser, HZJ105R GXL, 2000 year model...)  
×
×
  • Create New...