Guys just put a m52 into a e3
When idleing its spot on
When you rev it,it starts to splutter and hesitate at 5500 rpm and doesnt go over 5500 rpm
When you drive it and put your foot down again splutters badly
Any ideas?
Ive checked for air leaks,all is ok
Changed plugs aswell
328 m52 conversion spluttering
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SHAZ325iSPORT
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Motorhole
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Could be fpr or for vacuum feed. Could be cam/crank sensor. Could be MAF. Could be TPS. Could be a faulty coil. Could be poor earthing. Need to get a diagnostic done on it to see if it can throw up any clues, ideally otherwise you could end up replacing parts blindly. You can at least check the tps with a multimeter though to make sure the resistance is within spec and changing smoothly with throttle opening. Pull the boots for the sensors too and check the wiring as the insulation decays with age and heat, then moving around can cause exposed wires to touch. See if the error replicates with a jump lead attached to the block and to a good earth to rule out earthing probs.