Member
hello fellow bimmer-holics, first post here, just joined. Quick question...............my 635 euro 5 speed's idle searches for an idle speed. i cleaned /replaced the aic, sprayed carb-choke cleaner with no apparent vacuum leaks, and swapped out the ecu. i'm thinking the tps is bad, or at the least, out of adjustment. any suggestions? also, where can i buy a scanner to read the on board codes? any help is much appreciated in advance!
Member
Smoke test the intake manifold for vacuum leaks.
Member
i sprayed it with starter fluid, and no change
Apprentice w/#yrs. exp.
That method does not provide reliable confirmation.
An intake smoke test with a smoke machine is the only reliable way to confirm hard to locate leaks.
Member
hh, ok good to know!
Wagon meister :)
BMW Tech Expert
Sorry, but at the age of you vehicle, this is no OBD.
I would see about purchasing a Bentley Shop Manual to guide you thru the test procedures for the TPS, ect before you start throwing parts at the car.
Just so you know, the idle up/down can typically be 2 things: Vacuum leaks and a dirty ISV.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
Member
i agree with all u have said. those were the two things i was focusing on. ill head back to the books.
Wagon meister :)
BMW Tech Expert
Oh and please don't spray flammables around the intake anymore, a sparky alternator could light that mix, and make a fireball under the hood. Then you will not have any facial hair, and don't ask me how I know....
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
Member
ok, so i figured out the loaping idle problem; i forgot that several yrs ago i saw someone on youtube advance the flapper box teeth, which i had done as well, thinking it would help it run a bit richer. i replaced the flapper box with a spare and it seems to run without the up and down idle, bit it still idles high............like 1150 rpm. any thoughts?
Wagon meister :)
BMW Tech Expert
You can always check to ensure the throttle cable is loose and has a little bit of play. Next would be to check the throttle plate, and TPS to ensure that they are properly set as per the Bentley. There is an adjustment screw on the throttle plate, but that is only to make sure the plate is properly set.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
Member
will do, ty!
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