RUNNING PROBLEM NEED ADVICE Please

[ep82paul]

Hi all right ive got a problem with my engine long story short recently my headgasket went so I got the head skimmed last week bought a new HG from Toyota put it back together last night went to the car this morning checked everthing over to make sure it was right timing marks were spot on did a compression test cold I got 140 on all 4 I put new ngk iridium plugs in turned key it fired straight away it sounded mint running on all 4 I let it tick over for 20 mins then as soon as I touched the throttle its sounds abit rough then ok then it cut out it fired up straight away then cut out a few seconds later any help would be great thanks do new plugs come pre gapped or do I have to set my self

Edited January 29, 2014 by ep82paul

[mikey4410]

well for a start 140 across all four is awful and u should have 170 ish plus over them.indicates a rebuild is long overdue unfortunatley

and spark plugs do usually just work out of the box and that doesnt sound like thats the reason for your running issues.

Edited January 29, 2014 by mikey4410

[H_D]

do a compression tests when the engine is warm.

I always check the gap on the plugs with a feele gauge regardless of being pre-gapped or not.

[corofin12345]

as above, warm and make sure you pull the EFI relay and have WOT "wide open throttle" too.. and just to add, 140 across all 4 is not bad, my engine was 135 across all 4 and it was perfect... although it should be reading higher if the head was skimmed, unless the HG is thicker than stock

Edited January 29, 2014 by corofin12345

[ep82paul]

Sorry forgot to say after it ran for 20mins n cut out i did a compression warm it was 160on all for

[corofin12345]

Sorry forgot to say after it ran for 20mins n cut out i did a compression warm it was 160on all for

with wide open throttle..???

is the engine management light coming on...??

[ep82paul]

no engine management light on open throttle fully only thing is I never took the boost pipe off to the inlet

[Stu]

Havent left the water temp sensor plug off when you had the head off did you?

[ep82paul]

Havent left the water temp sensor plug off when you had the head off did you?

no water temp plug in temp gauge works went down to start it this morning fired up straight away pulled car out garage drove it up and down road ran mint till it got warm then it starts to splutters if i rev it past 2thou revs it clears up back off the throttle then splutters again only does it when its warm

[H_D]

Check the TPS and coolant temp sensor.

[ep82paul]

Check the TPS and coolant temp sensor.

what do i look for on the tps sensor broken wires dodgy connectors the water temp sensor is that in the block at the front on dizzy side because there is another 3sensors underneath the thermostat housing still learning on these starlets lol

[Stu]

Water temp sensor isn't the single wire one for the dash gauge but the green plug two wire that runs to the ecu. One wire is signal earth, other runs to THW on the ecu.

I don't think it will be the TPS as on most 4efte's its only a switch style TPS for off idle and not a variable signal (like 4ages for example). It would happen all the time and not just if its cold.

Have you checked all the plugs/leads/rotor/dizzy cap etc?

[ep82paul]

Thanks lads for all your help got her back on road now just needed a nice slow drive and it cleared up its all good now thanx people