Problem When Cars Warm Rb20det

[Peanut92]

Fellow sau members

My car has a million problems need help solving one my old r33 did the same I just sold the thing without fixing it this one does it all the time

Problem

When the cars hot after a while I don't mean running temp more like drive for half an hour. My car seems to all of a sudden loose power after a quarter throttle

Things I noticed are the exhaust note hangs sounds like the car is struggling (which it is) it sounds like it's slowly revving out but takes forever

Natural instinct makes me back off but if I keep the throttle down it really goes nowhere!

Since I have been swamped with other things it's been put off for a while until I get the cars other issues fixed

It's really annoying and I can't overtake anyone with the power of a charade

While I'm writing a thread does anyone know why it idles high? 1100 rpm.

Thanks in advance

[89CAL]

Have you looked at anything? Plugs, Coils would probably be a good place to start

What ECU?

What Mods?

List some more details. It does make a difference if its a 600hp GTR or a stock standard R32 N/A

[Humbla]

You are one of the most helpful people on this forum,I will be in your area at some stage and would love to catch up for a chat. :-)

[Ben C34]

You are one of the most helpful people on this forum,I will be in your area at some stage and would love to catch up for a chat. :-)

Cougar on the prowl!

[Peanut92]

Sorry boys completely forgot details of my car

R32 rb20det

Dead stock apart from an exhaust

Still has a side mount

Coil harness is pretty ratchet

[Humbla]

Cougar on the prowl!

Ha ha ,me way past that got 9 and a half grand kids,but love car chatting.. :-)

[jiffo]

Do you know if the coolant temp sensor is OK?

[Peanut92]

Just replaced it ( but that was the one for the gauge. I believe the ecu uses the other one ?)

[Sinista32]

Correct.

Replace the other one if tests faulty. or just replace it

[Peanut92]

Yeah I'll just replace is. Is this in reference to my idle issue or nugget when hot issue

(Please note that my thermostat is new and the car gets up to "running temperature" quickly it's drives longer then say 30 minutes sometimes longer before it does it.

(It is accumulative so if I do a lot of short trips it still does it)

[Sinista32]

Both - Idle and Nugget

Edit: Basically the ECTS (Water coolant Sensor) is sending poor info to the ECU which is getting info from other sensors as well.

By the way it should cost around $40-50 and you can change it yourself

Edited April 28, 2015 by Sinista32

[Peanut92]

They are pretty cheap I'll replace it shortly

[niZmO_Man]

20+ years old car now man, things start to get old/worn/brittle. Start slowly gathering parts and replace them (e.g. coilpacks + harness + from performance-wise, throw new BCPR6ES-11 spark plugs in as well).

Having a standard engine is a bonus, less shit to worry about when diagnosing.

I miss my black GTS-t

[Peanut92]

Yeah that's it

Coilpacks and harness are next on the list.

And i always run bcpr6es but the .8mm gap have for all my skylines never had a problem

[niZmO_Man]

Yeah you can run 0.8mm gap, but with new coils you can run the factory 1.1mm gap My GT-R has those.

[Peanut92]

But later down the track when I do the mods I like ill run .8 to stop breakdown at higher revs?

16-18 psi high setting

[Peanut92]

This is my first stock one. So previously I've run 12-14 psi roughly and .8 gapped bcpr6es plugs

Even with new coils

Could there be any harmful effects running that gap with new splitfires?

[Sinista32]

The larger the gap the better/bigger the spark therefore better the burn

With a stock car running average boost your best off with 1.1mm on your spark plugs.

When you modify and wind up the wick wait until you get issues prior to reducing the gap down.

There wont be any issues running a smaller gap with new splitfires BUT it's not optimum. See first line ^^

Edited April 29, 2015 by Sinista32

[jiffo]

Coolant temp sensor could be tested with multi meter measured between the terminals.

Approx 20 deg C, approx 2.5k ohms.

Approx 80 deg C, approx 0.3k ohms.

[Peanut92]

Cheers sinista sounds like a plan I'll give them a shot

And cheers got that jiffo

I'm not the smartest with a multimeter so how exactly do I set it up to measure the ohms and I'm obviously unplugging the sensor correct?