loss of power when warmed up

[glennb]

Hi Yall

I have a 93 patrol tb42 that has a loss of power when its at full running temp.
I was having some over heating issues with the car, IE:was running around 3/4 on the gauge when diong around 100 kph.
Was fine around 80 to 90 but on 100 she would go up and loose power.
Also has always been gutless when its at running temp.

fixed the issue by installing a new 3 core rad, water pump and put on some thermo fans as well.

Now she runs at just under 1/2 way all the time.

I have still got the problem of power loss at running temp though..... Any ideas?

[munzy42]

Sounds similar to the problem I'm having with my 93 maverick. Runs sweet when cool then misses badly when up to temp. Sadly I'm still working on the problem too

[glennb]

Mine had a miss fire that i fixed by new plugs and leads.

It dont miss fire any more when its hot.. has a small missfire when its cold but dont affect it.
Just realy gutless when warm. My 120y has more grunt.

[threedogs]

is it back firing on fuel
and is it dual fuel??

[glennb]

Na its just pertol. EFI

I,m thinking it is fuel related so im gonna throw a gas kit at it if it dont start to behave.

Ive cleaned out the fuel filter and run through some injector cleaner as well.
Next step is the TPS and fuel reg.

[Bloodyaussie]

Also water temp sender. ...

[glennb]

Ive heard of these water temp senders doin Strange stuff.

It works the gauge fine. How would it cause my power loss. Is it an ECU thing?

[Robo]

Have a look at O2 sensor

[glennb]

i was wondering about O2 sensor.
seems to be intermittant and more so around 1/2 to 3/4 throttle. If i floor it it seems not to bad.

[glennb]

can anyone tell me if it has a vac advance module anywhere or does the ECU take care of it?

[Bloodyaussie]

Ive heard of these water temp senders doin Strange stuff.

It works the gauge fine. How would it cause my power loss. Is it an ECU thing?

Its not the temp gauge sensor its the one that tells the car you have reached a certain temp then tells the car to idle down...or something like that??

[Rickie3]

not a dodgey catalytic convertor is it? i'd be checking that out to

[glennb]

I seem to have found the issue.

I pulled the TPS off last night and drowned it with crc and now it seen to have all its power back and no flat spots.

Thanks to everyone for all the great ideas.
Illl keep you posted on a def answer.

Thanks

[Bloodyaussie]

Tps are common to stuff up.. I have 3 here that are all stuffed in different ways.... whether this is your issue time will tell?

Lets hope you have found the problem as this stuff just drives ya nuts!!!!!!

[glennb]

Your not Wrong Mate. I've been a mechanic for 20 yrs and these lil poxy intermittant problems can drive a man to drink.........ALOT

Cheers

[glennb]

Ok.. looks like its back to the drink..... The new TPS is in and made no diff.