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| 94 EFI surging https://auszookers.com/forum/viewtopic.php?f=5&t=44806 |
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| Author: | xl76 [ Thu Jan 23, 2014 12:38 pm ] |
| Post subject: | 94 EFI surging |
Hey everyone I have a 94 B16 vit which has recently started to surge and miss around 2800 -3000 rpm on acceleration and then it will accelerate above that OK . I have checked the usual things Air cleaner spark plugs compression leads new rotor and dizzy cap Cleaned MAF Cleaned throttle body has anybody had this before out of the blue. all help greatfull |
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| Author: | jimny_timmy [ Thu Jan 23, 2014 2:41 pm ] |
| Post subject: | Re: 94 EFI surging |
Auto or manual buddy? |
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| Author: | xl76 [ Thu Jan 23, 2014 4:26 pm ] |
| Post subject: | Re: 94 EFI surging |
Yeh Sorry Manual |
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| Author: | xl76 [ Thu Jan 23, 2014 6:15 pm ] |
| Post subject: | Re: 94 EFI surging |
just checked the ECU only code was 12 |
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| Author: | johnmath [ Thu Jan 23, 2014 10:38 pm ] |
| Post subject: | Re: 94 EFI surging |
Diagnostic Code 12: Diagnostic Item: No fault or fault in not monitored circuit. http://www.rhinopower.org/diag/cel.html Engines need three things: compression, fuel & spark. My guess would be a loose low tension ignition wire, or some other loose electrical wire (most likely on the engine) that is resonating or vibrating and making poor connection at the rpms where you have the surging. Good luck! |
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| Author: | JrZook [ Fri Jan 24, 2014 10:48 am ] |
| Post subject: | Re: 94 EFI surging |
Whats the fuel pressure like? |
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| Author: | xl76 [ Sat Jan 25, 2014 1:11 pm ] |
| Post subject: | Re: 94 EFI surging |
still no good I have checked the wiring , cleaned every plug I can find compression 4 x 145psi I will check the fuel pressure any Idea what is correct pressure is. |
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| Author: | xl76 [ Sun Jan 26, 2014 5:50 pm ] |
| Post subject: | Re: 94 EFI surging |
I think I have a answer , I was researching Outers and someone had a similar issue which sounded the same . Problem was the temp sensor I disconnected mine and Bingo problem gone . Need a new Temp sensor |
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| Author: | Scrawny [ Sun Jan 26, 2014 7:55 pm ] |
| Post subject: | Re: 94 EFI surging |
Which temp sender? |
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| Author: | xl76 [ Sun Jan 26, 2014 9:00 pm ] |
| Post subject: | Re: 94 EFI surging |
There is one with a two wire plug on it left side bottom with a large plug |
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| Author: | Rhinoman [ Mon Jan 27, 2014 5:15 am ] |
| Post subject: | Re: 94 EFI surging |
I would advise that you check all the vacuum lines, surging is often caused by a leak which causes the ECU to be unable to properly control idle. It would also be worth cleaning out the EGR just in case thats sticking. |
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