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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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B230FD Problems :)Views : 7676 Replies : 156Users Viewing This Thread : |
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Feb 19th, 2020, 20:48 | #141 | |
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Like Ash said, nothing in that makes sense.
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Feb 19th, 2020, 21:20 | #142 |
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Here's a try at making sense.
The engine continues to have a serious performance problem. The 65A alternator is dead and so places no mechanical load on the engine. the 100A is very good and, at full output, requires around 3 hp to drive it. The engine doesn't have 3 hp to give. |
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Feb 19th, 2020, 22:15 | #143 |
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Unplug the earth connection from the TPS and try it again. Let me know what happens.
Also have you got a NOID light yet?
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Feb 20th, 2020, 05:19 | #144 |
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How can the ecu be bad? It’s either working or not. Not In between?
Last edited by Volvo940GL; Feb 20th, 2020 at 05:25. |
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Feb 20th, 2020, 05:19 | #145 | |
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Feb 20th, 2020, 05:21 | #146 | |
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It doesent make sense. At idle it made it worse with new alternator. It would backfire and hesitate to rev. Last edited by Volvo940GL; Feb 20th, 2020 at 05:39. |
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Feb 20th, 2020, 05:22 | #147 | |
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Or the regular ground cable that’s separated No, I don’t have noid light anymore Last edited by Volvo940GL; Feb 20th, 2020 at 05:55. |
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Feb 20th, 2020, 05:36 | #148 | |
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I have no idea. I have checked everything. But using a multimeter on every sensor, haven’t done that yet |
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Feb 20th, 2020, 05:37 | #149 |
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Feb 20th, 2020, 05:52 | #150 | |
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I noticed when I changed alternator and battery, it cranked way faster and started faster. But ash says it’s a mechanical problem so my engine can’t give out 3hp to the alternator. Do assuming my original alternator is bad, it requires no effort to spin the alternator. Could I try another 65ampere one? Is there any limp mode in these old Volvo’s? This idling problem is killing me. I won’t throw my 65ampere away. I just don’t know what to try out now, so Im relying on you two guys now. What do I need to check when the 100 ampere alternator cannot give enough juice? Is it really the ecu that’s causing this? |
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b230fd, faultcodes, help and advice, lean and rich, rough idle |
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