mckrob
Member
I don't know if this is the same with the Cinq, but here goes anyway.
My brother in laws Astra 1.4 had a flat spot, or 'hesitation' at 4krpm. I said to him about the Cinq having the same problem, and ways to help cure it, via induction kits, breather pipes, etc.
He looked at me and asked if it completly solved the problem. I told him it ALMOST cured it, but its still evident despite my attempts to cure. Being an ex-mechanic, he rings a mate, who then rings a mate, who then rings a mate.....
And 3 days later, he tells me his new part has arrived. Not cheap, but solves his problem straight away. Obviously, i'm dying to know what he ordered that cured his problem! The answer....
Performance Fuel Pump. The standard pump on his Astra just couldn't pump fuel in quick enough when he floored it, so the engine hesitated to respond at 4krpm. Then the penny dropped with the Cinq. So you fit an induction kit to give the engine more air, and a chip to pump more fuel into the engine, but can the standard fuel pump deliver? I now don't think it does.
All this air goes in via your £60 induction kit. Your £150+ superchip tells the ECU to send more fuel. Yet its still not perfect. Could it be that we are asking more of the engine than the standard fuel pump can give?
Just my theory, but makes sense. Proven to work on the Astra at least. I'd be interested to hear of anyone who has upgraded this.
Cinq Sporting 1997 https://www.fiatforum.com/forum/topic.asp?TOPIC_ID=8033 Parts Needed!
My brother in laws Astra 1.4 had a flat spot, or 'hesitation' at 4krpm. I said to him about the Cinq having the same problem, and ways to help cure it, via induction kits, breather pipes, etc.
He looked at me and asked if it completly solved the problem. I told him it ALMOST cured it, but its still evident despite my attempts to cure. Being an ex-mechanic, he rings a mate, who then rings a mate, who then rings a mate.....
And 3 days later, he tells me his new part has arrived. Not cheap, but solves his problem straight away. Obviously, i'm dying to know what he ordered that cured his problem! The answer....
Performance Fuel Pump. The standard pump on his Astra just couldn't pump fuel in quick enough when he floored it, so the engine hesitated to respond at 4krpm. Then the penny dropped with the Cinq. So you fit an induction kit to give the engine more air, and a chip to pump more fuel into the engine, but can the standard fuel pump deliver? I now don't think it does.
All this air goes in via your £60 induction kit. Your £150+ superchip tells the ECU to send more fuel. Yet its still not perfect. Could it be that we are asking more of the engine than the standard fuel pump can give?
Just my theory, but makes sense. Proven to work on the Astra at least. I'd be interested to hear of anyone who has upgraded this.
Cinq Sporting 1997 https://www.fiatforum.com/forum/topic.asp?TOPIC_ID=8033 Parts Needed!