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Fitted new engine but not running well, suggestions please :-)


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Right fitted an engine from a gt into my glanza, thought all was well, until I started it up, it's running very lumpy on tick over, it revs fine but if u try hold the revs it runs lumpy to, the exhaust note doesn't sound right either, it has spark on all 4 plugs, I tried loosing off the distributor and adjusting the position but no joy. Anyone got any suggestions what to check next? Everything's plugged in, no broken wires from what I can see, engine no light on the dash. Not checked the timing yet but will do tomorrow, anyone got any idea what else to check? Thanks

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Sounds like the map sensor, it will run really lumpy without it plugged in properly. Its mounted in the middle top of the rear firewall behind engine ., a small black thing. It will have a pipe coming off it which needs to be connected to a vacume pipe on the inlet manifold. Double check the plug is in and there are no broken wires, (there are 3 wires).

Give that a try

Edited by Taggy
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