4th Gen - HT/Spark Plug Leads?

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Sun May 05, 2013 10:24 am

Riverghost wrote: also, once the engines stopped hot idling, what does your idle rpm stay at? this seems to be about 1100rpm which im sure is a little high if i remember.

All help appreciated guys !

Glad the new rad has helped.

Yeah that's a bit high.

Check the resistance of your coolant temp sensor (the one that feeds the ecu) when cold and when hot and post up what figures you get . I forget what's correct now, so I'll re-check mine today/tomorrow to compare.

Dbo · Post by **Dbo** » Sun May 05, 2013 10:38 am

a high idle can sometimes be the simple things you overlook

mine had a hunt problem that was just the tps needed ajusting and then my idle was up past 1000 and all it was, was the throttle cable ajuster was stuck

just have a quick check your cable isn't too tight

Riverghost · Post by **Riverghost** » Sun May 05, 2013 10:44 am

Hey everyone,cheers for the responses! After a bit of driving around the rpm did come down to below 1k, about 850-900, so for the moment im happy with that, started her up today and it seems to be returning to the right idle speed after a few mins now (perhaps coolant needed to do a complete runthrough the system a few times?) Couldnt believe how quiet the engine was when pulling in for fuel, thought it had turned off!!

and about these HT leads - can never ask a question without about 3 different responses

At the moment, going and spending about £90 on some good leads whilst a sound investment isnt quite in my budget, will something like the following do?

http://www.ebay.co.uk/itm/Honda-Prelude ... 35c5e6affc

Or potentially

http://www.ebay.co.uk/itm/8MM-RED-SILIC ... 232a13418c

Seen a different thread about the suggested sparkplugs, so wont open that can of worms here

Dbo · Post by **Dbo** » Sun May 05, 2013 10:53 am

was going to say the red 8mm look good but in the useage it says will not fit h22a2 that means no good for h22a either

the red ones seem to be for 1997 onwards

bit strange as most h22 are all the same

Riverghost · Post by **Riverghost** » Sun May 05, 2013 10:56 am

right this keeps confusing me, so a h22a2 is what, the SIR version, the H22a5 and a8 versions being the standard 2.2vtec for either the mk4 or mk5?

Dbo · Post by **Dbo** » Sun May 05, 2013 11:00 am

no m8

1992 to 1996 gen4 jdm h22a ukdm h22a2 no knock sensor and 10bhp less.

1997 onwards gen5 h22a5 and onwards

Riverghost · Post by **Riverghost** » Sun May 05, 2013 3:33 pm

Update - well this may be more urgent to resolve than expected! Just driven it to the shops, was a bit hesitant and sounded off. Got back with my shopping and it won't start, ticks over but won't spark

can someone tell me what's needed out of the garage so I can go back and perhaps take off the plugs out and clean? Also, anyone got some for sale like ASAP:

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Sun May 05, 2013 4:25 pm

Sounding like a distributor problem rather than plugs/leads?

Post by **Vtecmec** » Sun May 05, 2013 5:15 pm

Does sound like the dizzy, unfortunately this could have been caused by dodgy leads as the h22 dizzy's tend to die when run without a spark plug connected.

Riverghost · Post by **Riverghost** » Sun May 05, 2013 6:37 pm

Thanks guys, feedback at a time like this is really appreciated! Going to make use of the tax cover to get it towed to a garage and get them to give it a look over and stick some new leads and plugs. Dizzy replace a big job?