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Old 6 Days Ago   #1
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Ecu problems maybe

Hey friends i have a cinq 1.1 from97 and the injector put tooo too much fiel i have problems whit the main electrical swich next to ECU nut i chek it it's OK the car works but again too much fiel i chek the elektrical wires and the injector was replace and the same so now i have to chek the ECU but in may town no one can fix it maybe and wonder from which punto i can take ECU for the cinq? The tempreture sensor is changed the vacum of the map sensor is not damaged the gas sensor it's OK the computer says and the larning light on the dash is almost always on.
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Old 5 Days Ago   #2
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Re: Ecu problems maybe

The ECU's are generally bulletproof. If the car is running, it's unlikely to be the issue.

There are 3 sensors that control the fuel mixture on an SPI, Map, Coolant temp sensor in the inlet and Lambda.

If the inlet coolant temp sensor is faulty, they tend to chuck way too much fuel in to the point your rear bumper goes black with soot from the exhaust. (it triggers the red ignition light if totally dead/disconnected).

I would recommend a live scan via FES, Startrek or similar, it will allow you to "see" what the sensors are seeing and quickly let you see if any is dead or readings are wildly out.
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Old 5 Days Ago   #3
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Re: Ecu problems maybe

interesteting the coolant temp. sensor is changed whit new one. Yes the car is running poorly bad after few hours of work the sparks are so dirty that some of the cilinders cut of, the smel of fresh gasolin acur from the exhaust. I went to some mechanik in my tow for computer diagnostics but no one of them can tel me forsure were is the problem. I can try to change the lambda but im tired of changing parts ond noting.
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Old 5 Days Ago   #4
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Re: Ecu problems maybe

I can say from experience it's very unlikely to be the lambda if it's overfueling to that extent. it has an effect, but not that much of an effect. It's more likely on the Map side or inlet sensor. I found even taking the Lambda out the circuit altogether doesn't trigger a warning light on these, only the coolant temp and MAP does.

Another possibility is the injector unit itself, especially if the adjustment screw has been messed with. But that's less likely, especially if you know its history and was running fine in your ownership.

Get the car live scanned. (not just fault code scanned, you need live data to see what the sensors are seeing/doing) I'm relatively confident there's going to be something visible on it, especially as you say the injection light is on.
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Old 3 Days Ago   #5
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Re: Ecu problems maybe

so far so good the only thing that is not chek or changed is the map sensor i have done live scan the problems that ocur was:
Computer says that has low voltage abaut 9.5 9.7 10 (the alternator is good new bearings and new grafits) and wen i chek the charge is 14.5 about
the tempreture sensor (the old one) says diferent tempreture in evry 5 6 seconds 35 40 45 den again 30 but the actual tempreture was abouth 60 70 degree acording to ather tempreture sensor. And this is about live scan when i ask the mechanic wath all that mean he told me i don't know meaby the eletrical wire or computer so i start chek and i sad that is the ****ing ECU and i can't find in my country.
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Old 2 Days Ago   #6
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Re: Ecu problems maybe

today I take the car from one mechanic he told me that all the sensor are OK the lambda is chek the temperature and the map there are no problems whit the wiring or something but again I think that the fuel is too much. I change the sparks and now the smell of fresh gasoline from the exist disappear. I will drive now obout 100km and then we see. About the red dash light when the engine work for 10sec without touching the throttle lights come of but wen I pres the throttle came back if I hold the throttle for fell sec the light come off
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