spark plug

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8565
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Post Sun Dec 22, 2013 12:45 pm

after i renew my spark plug to BORSCH WR 78 super 4, my engine became misses when idleing. can any one help??
:( :(
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BenHar
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Post Sun Dec 22, 2013 12:53 pm

The recommended replacements are NGK BPR6ES.

Ben
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8565
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Post Sun Dec 22, 2013 1:00 pm

ok, i bought a Haynes book for E30 and it say the plug is WR 78 or WR 7 D+?? Well i need to change to NGK BPR6ES. Finger cross will be getting better. :D thks foe your help bro.
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Speedtouch
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Post Sun Dec 22, 2013 1:37 pm

Have you tried replacing the original plugs, to see if the problem goes away?
///M aurice
ECU Upgrade EPROM Chips, £40 posted within the UK. Note these are not Zone chips.
viewtopic.php?f=6&t=279421
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Brianmoooore
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Post Sun Dec 22, 2013 5:08 pm

If this is a M20 engine, then they aren't suitable. Four electrode plugs don't work well with these engines.
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8565
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Post Mon Dec 23, 2013 8:26 am

haha, thks all bro. i renewed it with NGK BPR6ES AND COME OUT ALL FIND. FINGER CROSS WILL SEE THIS FEW DARS HOW IS RUNNING. :D
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8565
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Post Mon Dec 23, 2013 8:29 am

CAN THE TPS BE ADJUST? THE ENGINE STILL GOT LITTLE MISS WHEN IDELING. WAS THKING THE TPS OR IDLE SIDE VALVE. HOW TO CHECK THE IDLE SIDE VALVE?
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daimlerman
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Post Mon Dec 23, 2013 9:54 am

8565 wrote:CAN THE TPS BE ADJUST? THE ENGINE STILL GOT LITTLE MISS WHEN IDELING. WAS THKING THE TPS OR IDLE SIDE VALVE. HOW TO CHECK THE IDLE SIDE VALVE?
Please take your CAPS LOCK OFF!

TPS is mounted under the t/b,the t/b needs to be removed to allow it to be adjusted.When the throttle plate starts to move,a 'click' should be heard.
However,the usual symptom of a badly set TPS is an over rich idle,as the ECU thinks that the throttle is open when,in fact,it is closed.

Not too sure what an 'idle side valve' is ATM.
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Grrrmachine
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Post Mon Dec 23, 2013 3:05 pm

Idle slide valve was only fitted to early 2.0 and 2.3 engines that use Jetronic. This car is a 2.5, so won't have the idle slide valve.
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