1g-gte running rich and bad idle

[Z2TT]

Nope its not the BOV at all, i've even tried running without one and car still has a a bit of a rough idle just like before.

[JZA70R_92]

try spraying carby cleaner around hose joins and see if idle changes if so then your found your problem. is your ISCV plugged in correctly?? check hose leading for T piece to intake manifold

[Z2TT]

To check for intake leaks I might use a bike pump to pressurize the whole intake system, but will have to make some kind of adapter that i can clamp onto the hose after AFM.

I have checked all the vacuum lines near the manifold and there seems to be no leaks.

Isn't it a bit dangerous to spray carby cleaner around when the engine is running?

Thanks,
Z2TT

[andrew_mx83]

carby cleaner does not burn. if the engine coughs and splutters its cos there is a leak & it has inhaled a non-combustible substance

[LeeRoy]

Just use some mildly soapy water instead of carby cleaner.

Your not hosing it on anyways your only giving a few squirts over joins.

[Z2TT]

Ah will do Leeroy, I'll go try make some kind of adapter up so I can attach my bike pump to the Intake system, I have lots of valves from bike tubes that I can use, really not sure how I would do it but I'll find out when i get to it.

[LeeRoy]

Just get a cap from a plumbing store (bunnings even) and then sikaflex or whatever the bike valve into it.

Pump away!

[Z2TT]

Hi,

Today I took my spark plugs out and tested compression, aswell as tested the ignition coil resistance.

I got a reading of 11K Ohms for the Ignition Coil resistance.

When I took the spark plugs out, most of them were fairly white except for the ones from 3 and 4.

I did a compression test, here are me results. 4 strokes, I recorded first and last stroke compression. Here are my results. I did 2 trials per cylinder.

Cyl 1 - 90/150 ............ 90/150
Cyl 2 - 90/159 ............ 100/168
Cyl 3 - 100/168 ............ 100/175
Cyl 4 - 100/175 ............ 100/175
Cyl 5 - 100/160 ............ 90/172
Cyl 6 - 100/170 ............ 100/175

Are these readings ok? Cyl 1 seems to show low compression.