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Discussion Starter · #1 ·
Hello folks. I posted a problem I had with my idle on my lotus elise a couple of weeks ago. The problem was that the engine was ticking over high and when you lifted off the throttle after heavy acceleration the revs would rise before they would fall. So far i have changed the iacv, the throttle pot, the brown temp sensor, the plugs, leads, cap and rotor arm, checked for air leaks yet the problem still remains. I'm begining to think the ECU is at fault. Any more ideas again???
 

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Haven't seen your original thread, so appologies if I am repeating something. Could it be as simple as a slow to respond/sticky throttle or cable?
 

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Discussion Starter · #3 ·
Oh sorry. I dont think its a sticky throttle - I have the 52mm alloy one and the problem stays even whe the cable is disconnected etc.
 

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Discussion Starter · #5 ·
Well I thought it would be that too but replacing that made no difference either. I'm getting a little nervous now as I'm off on holiday in france to it in a week - typical hey!
 

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Have you tried cleaning the contacts on the sensor connectors?
I had an idle problem, and it turned out to simpy be a dirty/poor contact on the TPS sensor connector.
 

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Know what you're thinking but even at 750RPM, the engine still displaces 11 litres/sec. Think you'd notice this sort of leak.
 

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Discussion Starter · #13 ·
Just to let you know I gave up and put the car into my local garage. Tuns out it was the manifold gasket that had gone. I would never have supected it in a million years as I only replaced it like 900 miles ago when I fitted the new alloy plenum. Anyway thanks to everyone for all of the advice etc. Much appreciated. Phew.
 
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