Hesitiation on part throttle...

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jonnie
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Fri Jun 03, 2011 10:17 am

Hey Guys,

Read a few people mentioning that they've had a hesitation on part throttle at low rpms on there S50's.

I seem to have this also...

Anyone find the solution?

Apart from that it flys :D
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jonnie
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Sun Jun 05, 2011 8:18 pm

Anyone?
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fixedwheelnut
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Sun Jun 05, 2011 9:31 pm

I'd start by getting the codes read to see if anything shows up, then check the valve clearances/ CO readings, [measured at each exhaust port] and the throttle switch often overlooked on older cars it is an Inspection two service item on S50 M3's
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jonnie
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Mon Jun 06, 2011 9:32 am

The TPS is new, valve clearences just done, but I will put my diagnostic software on it and see what is comes up with.

I'm more interested that I've read a few people have had the same problem on here with their s50 converted cars and would like to know if they have solved it and what it was?
Larsen-Racing
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Tue Jun 07, 2011 11:59 am

Mine is hesitating at WOT, not part throttle. So we don't have the same problem.
Try to unplug you MAF while the engine is running, you shall hear a small change in the idle. If you don't the MAF is toasted.
87 E30M3 RB26DETT
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jonnie
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Sun Jun 12, 2011 10:39 pm

All sorted!! Just had the lambdas the wrong way round! Doh!
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