rough running

SUZUKI
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THAI
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i have a suzuki 1.6 16v 1994. Starts fine , ticks over fine and drives ok when cold but after 2-3 miniutes if you try to hold a steady speed up to about 3000rpm it seems to splutter as if it was on three cylinders. If i drive hard it seems ok. plugs are new. Leads look new
Oct 9, 2007 at 7:07 PM
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RASMATAZ
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Check the fuel pressure with a gauge and inspect the cap and rotor, make sure the plug wires are not loose on both ends.

Also check the throttle position sensor and engine load sensor-like MAF airflow meter.
Oct 12, 2007 at 7:42 AM
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THAI
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If i disconect maf sensor the low speed stutter goes away. Do you think i need a new sensor or is there something else
Oct 13, 2007 at 10:41 AM
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RASMATAZ
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You need to replace it if the stutters goes away. its affecting it.
Oct 13, 2007 at 12:57 PM
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THAI
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tried a secondhand one from the breakers but stuttering remaind.Drove ham unpluged and it ran fine apart from the tickover has moved to 1500rpm.Now i dont know if its two faulty sensors or unpluging it just maskes the problem. anybody any ideas thanks
Oct 14, 2007 at 10:33 AM
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RASMATAZ
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If you're not satisfied is to its condition bench test it-normally if disconnected and problem disappears its the MAF or also might want to check the TPS close and wot voltages.
Oct 15, 2007 at 4:53 AM
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