Air Flow Meter.....what part number????
Discussion
My AFM is giving out irregular signals and keeps resetting itself to running rich, issue is this causes stalling and it's drivin me nuts!!
Problem is new one at Racing Green is £377
Scrapie wants £125 plus carriage
eBay has one for £60 for a landie - Rover 3.9 part number ERR 5198, I've looked at my Chimaera 1998 4.5 and can I see a part number!!!!!
Anyone help, as I'm stuffed right now
Any idea what the part number is, all I see is 5AM and a bar code!
Problem is new one at Racing Green is £377
Scrapie wants £125 plus carriage
eBay has one for £60 for a landie - Rover 3.9 part number ERR 5198, I've looked at my Chimaera 1998 4.5 and can I see a part number!!!!!
Anyone help, as I'm stuffed right now
Any idea what the part number is, all I see is 5AM and a bar code!
Still having problems with the setup on my Chim 450 1998, albeit minor!
Story is, cam was worn and decided pre-cats should come out as well, so put the Chim into a good indie to have the work done.
MC1 cam from V8D installed, took car away, ran really smoothly, but started stalling immediately. Took it back and AFM diagnosed as problematic causing rich running, AFM would not adjust the CO2 reading below 4% (should be 0.2%).
Bought AFM took it back had it fitted, still had problems in setup, tested lambda's and not only was one the wrong part number, but they were both sooted up and shagged - not working. Don't know how that happened.
So with new lambda's fitted took the car away and it's running perfectly on any amount of acceleration, no hesitation just smooth and easy pull. However on standard throttle while cruising, say holding it at a steady 30, 40 or 50mph at anything from 1400 revs or through to 2000, the engine feels hesitant, it constantly feels like its going, but pulling back at the same time and it shunts at lower speeds and worse when cold. I'd suggest its running weak.
Took it back again to check setup and AFM was set at 1.7 volts with 0.2% CO2, so adjusted it to 1.8 volts as the main cat is left in and the reading was zero CO2, no reading at all..... and no change to the car, still hesitant at constant revs and shunting.
Next step is change the tune resistor... any other advice apart from the std lucas setup can be frustrating?
Story is, cam was worn and decided pre-cats should come out as well, so put the Chim into a good indie to have the work done.
MC1 cam from V8D installed, took car away, ran really smoothly, but started stalling immediately. Took it back and AFM diagnosed as problematic causing rich running, AFM would not adjust the CO2 reading below 4% (should be 0.2%).
Bought AFM took it back had it fitted, still had problems in setup, tested lambda's and not only was one the wrong part number, but they were both sooted up and shagged - not working. Don't know how that happened.
So with new lambda's fitted took the car away and it's running perfectly on any amount of acceleration, no hesitation just smooth and easy pull. However on standard throttle while cruising, say holding it at a steady 30, 40 or 50mph at anything from 1400 revs or through to 2000, the engine feels hesitant, it constantly feels like its going, but pulling back at the same time and it shunts at lower speeds and worse when cold. I'd suggest its running weak.
Took it back again to check setup and AFM was set at 1.7 volts with 0.2% CO2, so adjusted it to 1.8 volts as the main cat is left in and the reading was zero CO2, no reading at all..... and no change to the car, still hesitant at constant revs and shunting.
Next step is change the tune resistor... any other advice apart from the std lucas setup can be frustrating?
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